UK:*UK and possibly other pronunciationsUK and possibly other pronunciations strong: /duː/ /dəʊ/, weak: /dʊ/ /də/

US:USA pronuncation: IPAUSA pronuncation: IPA/du; unstressed dʊ, də/

US:USA pronunciation: respellingUSA pronunciation: respelling(do̅o̅; unstressed dŏŏ, də; Mus. dō)

Inflections of 'do' (nnoun: Refers to person, place, thing, quality, etc.):
nplplural noun: Noun always used in plural form--for example, "jeans," "scissors."
nplplural noun: Noun always used in plural form--for example, "jeans," "scissors."
Inflections of 'do' (v): (⇒ conjugate)
v 1st & 2nd person singular
v 3rd person singular
v 1st, 2nd, & 3rd person plural
v pastverb, past simple: Past tense--for example, "He saw the man." "She laughed."
v pres pverb, present participle: -ing verb used descriptively or to form progressive verb--for example, "a singing bird," "It is singing."
v past pverb, past participle: Verb form used descriptively or to form verbs--for example, "the locked door," "The door has been locked."

WordReference Random House Learner's Dictionary of American English © 2020
do1 /du; unstressed dʊ, də/USA pronunciation   v. and auxiliary v., pres. sing. 1st and 2nd pers.  do, 3rd  does /dʌz/USA pronunciation   pres. pl.  do; past sing. and pl.  did /dɪd/USA pronunciation  ;
past part.  done /dʌn/USA pronunciation  ;
pres. part.  do•ing;
 n., pl.  dos, do's. 

  1. to perform (an act, duty, role, etc.):[+ object]He does a great comedy act.
  2. to execute (a piece of work): [+ object]to do a hauling job.[+ object + object]You did me a big favor just then.
  3. to accomplish;
    finish:[+ object]He has already done it.
  4. to put forth;
    exert:[+ object]Do your best.
  5. to be the cause of (good, credit, etc.);
    bring about;
    effect: [+ object]Drugs can do harm to you.[+ object + object]Drugs can do you a lot of harm.
  6. to deal with, fix, clean, arrange, etc., (anything) as the case may require:[+ object]I did the windows and the laundry.
  7. [not: be + ~-ing] to serve;be enough (for);suffice for:[+ object]This will do us for the present.[no object]I'm sure this money will do just fine. Will this do?
  8. to allow or approve, as by custom or practice:[not: be + ~-ing;  ~ + object]We don't do that sort of thing in this college.
  9. to travel (a distance of);
    cover by traveling:[+ object]We did 30 miles today.
  10. to travel at the rate of (a certain speed):[+ object]But officer, I was only doing 65 miles an hour.
  11. to make or prepare:[+ object]I'll do the salad.
  12. to serve (a term) in prison:[+ object]He did five years in prison.
  13. to study or work at or in the field of:[+ object]I have to do my math tonight.
  14. to travel through as a sightseer:[+ object]They did Greece in 3 weeks.
  15. Slang Terms to use (drugs), esp. habitually:[+ object]He had been doing a lot of cocaine.
  16. to act or conduct oneself;
    behave:[no object]Do as I say, not as I do.
  17. to get along;
    manage:[no object]How are you doing at work?
  18. to be in a specified state of health:[no object]Mother and child are doing fine.

auxiliary v. [ + root form of a verb]
    • (used in questions before the subject): Do you like music? When did he leave?
    • (used in negative sentences before the word not, unless the main verb is be):I do not like you. I don't care. I didn't see you last night.
    • (used in certain inverted constructions before the subject):Seldom does one see such greed.
    • (used to emphasize the main verb): Do come up and see me some time. But I did tell you about the test!
    • (used to stand for, or repeat, another verb already mentioned):I think as you do (= I think as you think). I enjoy jogging and John does, too (= and John enjoys jogging, too). John enjoys jogging, doesn't he?
  1. do away with, [+ away + with + object]
    • to put an end to;
      abolish:We did away with that old custom years ago.
    • to kill:He did away with most of his rivals.
  2. do for, [+ for + object]
    • [usually: be + done + for] to cause the defeat, ruin, or death of:I'll really be done for if I don't finish this work.
    • British Terms[Chiefly Brit.]to keep house for;
      manage or provide for.
  3. do in, [+ object + in]
    • to kill;
      murder:They did him in with a knife.
    • to tire out or exhaust:All that hard work really did me in.
  4. do out of, [+ object + out + of + object][Informal.]to swindle;
    cheat:They did him out of his life savings.
  5. do over: 
    • to redecorate: [+ object + over]They did the room over.[+ over + object]You've done over the entire living room; it looks great.
    • to do again: [+ object + over]Do the work over; it's a mess.[+ over + object]You'll have to do over the work; it's a mess.
  6. do up: 
    • [+ up + object] to wrap and tie up:They did up the package and mailed it for me.
    • to pin up or arrange (the hair): [+ up + object]She did up her hair in a bun.[+ object + up]She did her hair up in a bun.
    • [+ up + object] to renovate or clean:They did up the old apartment and rented it out.
    • [+ up + object] to fasten:Do up your coat.
    • [+ up + object] to dress:The children were all done up in costumes.
  7. do with, [can/could + ~ + with + object] to benefit from;
    use:I could surely do with a cup of coffee right about now.
  8. do without: 
    • to forgo;
      dispense with: [+ without + object]We'll just have to do without a car until they fix it.[no object]We'll just have to do without for a while.

n. [countable]
  1. Informal Termsa burst of frenzied activity;
  2. Informal Termsa hairdo.
  3. British Termsa festive social gathering;
  1. Idiomsdos and don'ts, [plural] customs, rules, or regulations.

do•a•ble, adj.: He assured me my project was doable.

do2 /doʊ/USA pronunciation   n.[countable]pl.  dos. 
  1. Music and Dancethe musical syllable used for the first note of a scale.

WordReference Random House Unabridged Dictionary of American English © 2020
do1  (do̅o̅; unstressed dŏŏ, də),USA pronunciation v.  and auxiliary v., pres. sing. 1st pers.  do, 2nd  do  or (Archaic) do•est  or  dost, 3rd  does  or (Archaic) do•eth  or  doth, pres. pl.  do*  past sing. 1st pers.  did, 2nd  did  or (Archaic) didst, 3rd  did, past pl.  did;
 past part.  done;
 pres. part.  do•ing;
 n., pl.  dos, do's. 

  1. to perform (an act, duty, role, etc.):Do nothing until you hear the bell.
  2. to execute (a piece or amount of work):to do a hauling job.
  3. to accomplish;
    complete:He has already done his homework.
  4. to put forth;
    exert:Do your best.
  5. to be the cause of (good, harm, credit, etc.);
    bring about;
  6. to render, give, or pay (homage, justice, etc.).
  7. to deal with, fix, clean, arrange, move, etc., (anything) as the case may require:to do the dishes.
  8. to travel;
    traverse:We did 30 miles today.
  9. to serve;
    suffice for:This will do us for the present.
  10. to condone or approve, as by custom or practice:That sort of thing simply isn't done.
  11. to travel at the rate of (a specified speed):He was doing 80 when they arrested him.
  12. to make or prepare:I'll do the salad.
  13. to serve (a term of time) in prison, or, sometimes, in office.
  14. to create, form, or bring into being:She does wonderful oil portraits.
  15. to translate into or change the form or language of:MGM did the book into a movie.
  16. to study or work at or in the field of:I have to do my math tonight.
  17. to explore or travel through as a sightseer:They did Greece in three weeks.
  18. (used with a pronoun, as it or that, or with a general noun, as thing, that refers to a previously mentioned action):You were supposed to write thank-you letters; do it before tomorrow, please.
  19. Informal Termsto wear out;
    tire:That last set of tennis did me.
  20. Informal Termsto cheat, trick, or take advantage of:That crooked dealer did him for $500 at poker.
  21. Informal Termsto attend or participate in:Let's do lunch next week.
  22. Slang Termsto use (a drug or drugs), esp. habitually:The police report said he was doing cocaine.

  1. to act or conduct oneself;
    be in action;
  2. Slang Termsto rob;
    steal from:The law got him for doing a lot of banks.
  3. to proceed:to do wisely.
  4. to get along;
    manage:to do without an automobile.
  5. to be in health, as specified:Mother and child are doing fine.
  6. to serve or be satisfactory, as for the purpose;
    be enough;
    suffice:Will this do?
  7. to finish or be finished.
  8. to happen;
    take place;
    transpire:What's doing at the office?
  9. (used as a substitute to avoid repetition of a verb or full verb expression):I think as you do.

auxiliary verb. 
  1. (used in interrogative, negative, and inverted constructions):Do you like music? I don't care. Seldom do we witness such catastrophes.
  2. [Archaic.](used in imperatives with you or thou expressed;
    and occasionally as a metric filler in verse):Do thou hasten to the king's side. The wind did blow, the rain did fall.
  3. (used to lend emphasis to a principal verb):Do visit us!
  4. Idiomsdo a number on (someone). See  number (def. 27).
  5. Idiomsdo away with: 
    • to put an end to;
    • to kill.
  6. do by, to deal with;
    treat:He had always done well by his family.
  7. do for: 
    • to cause the defeat, ruin, or death of.
    • British Terms[Chiefly Brit.]to cook and keep house for;
      manage or provide for.
  8. do in, [Informal.]
    • to kill, esp. to murder.
    • to injure gravely or exhaust;
      wear out;
      ruin:The tropical climate did them in.
    • to cheat or swindle:He was done in by an unscrupulous broker.
  9. Idiomsdo one proud. See  proud (def. 11).
  10. Idiomsdo one's number. See  number (def. 28).
  11. do one's (own ) thing. See  thing 1 (def. 17).
  12. Idiomsdo or die, to make a supreme effort.
  13. do out of, [Informal.]to swindle;
    cheat:A furniture store did me out of several hundred dollars.
  14. do over, to redecorate.
  15. do time, [Informal.]to serve a term in prison:It's hard to get a decent job once you've done time.
  16. Idiomsdo to death. See  death (def. 15).
  17. do up, [Informal.]
    • to wrap and tie up.
    • to pin up or arrange (the hair).
    • to renovate;
    • to wear out;
    • to fasten:Do up your coat.
    • to dress:The children were all done up in funny costumes.
  18. do with, to gain advantage or benefit from;
    make use of:I could do with more leisure time.
  19. do without: 
    • to forgo;
      dispense with.
    • to dispense with the thing mentioned:The store doesn't have any, so you'll have to do without.
  20. Idiomshave to do with. See  have (def. 36).
  21. Idiomsmake do, to get along with what is at hand, despite its inadequacy:I can't afford a new coat so I have to make do with this one.

  1. Informal Termsa burst of frenzied activity;
  2. Informal Termsa hairdo or hair styling.
  3. British Termsa swindle;
  4. British Terms[Chiefly Brit.]a festive social gathering;
  5. Idiomsdos and don'ts, customs, rules, or regulations:The dos and don'ts of polite manners are easy to learn.
  • bef. 900; Middle English, Old English dōn; cognate with Dutch doen, German tun; akin to Latin -dere to put, facere to make, do, Greek tithénai to set, put, Sanskrit dadhāti (he) puts
    • 1, 25.See corresponding entry in Unabridged act.
    • 3.See corresponding entry in Unabridged Do, accomplish, achieve mean to bring some action to a conclusion.
      Do is the general word:He did a great deal of hard work.Accomplish and
      achieve both connote successful completion of an undertaking.
      Accomplish emphasizes attaining a desired goal through effort, skill, and perseverance:to accomplish what one has hoped for.Achieve emphasizes accomplishing something important, excellent, or great:to achieve a major breakthrough.

do2  (dō),USA pronunciation n., pl.  dos. [Music.]
  1. Music and Dancethe syllable used for the first tone or keynote of a diatonic scale.
  2. Music and Dance(in the fixed system of solmization) the tone C. Cf. sol-fa (def. 1), ut. 
  • Italian, inverted variant of ut; see gamut
  • 1745–55

  • ditto.

  • D/O, 
  • delivery order.
  • Also,  d.o. 
    1. GrammarAlso,  DO, d.o. direct object.
    2. Doctor of Optometry.
    3. Doctor of Osteopathy.

    Collins Concise English Dictionary © HarperCollins Publishers::
    do /duː; (unstressed) ; / vb (does, doing, did, done)
    1. to perform or complete (a deed or action): to do a portrait, the work is done
    2. often intr; followed by for: to serve the needs of; be suitable for (a person, situation, etc); suffice
    3. (transitive) to arrange or fix
    4. (transitive) to prepare or provide; serve: this restaurant doesn't do lunch on Sundays
    5. (transitive) to make tidy, elegant, ready, etc, as by arranging or adorning: to do one's hair
    6. (transitive) to improve (esp in the phrase do something to or for)
    7. (transitive) to find an answer to (a problem or puzzle)
    8. (transitive) to translate or adapt the form or language of: the book was done into a play
    9. (intransitive) to conduct oneself: do as you please
    10. (intransitive) to fare or manage
    11. (transitive) to cause or produce: complaints do nothing to help
    12. (transitive) to give or render: your portrait doesn't do you justice, do me a favour
    13. (transitive) to work at, esp as a course of study or a profession
    14. (transitive) to perform (a play, etc); act
    15. (transitive) to travel at a specified speed, esp as a maximum
    16. (transitive) to travel or traverse (a distance)
    17. (takes an infinitive without to) used as an auxiliary before the subject of an interrogative sentence as a way of forming a question: do you agree?, when did John go out?
    18. (takes an infinitive without to) used as an auxiliary to intensify positive statements and commands: I do like your new house, do hurry!
    19. (takes an infinitive without to) used as an auxiliary before a negative adverb to form negative statements or commands: he does not like cheese, do not leave me here alone!
    20. (takes an infinitive without to) used as an auxiliary in inverted constructions: little did he realize that, only rarely does he come in before ten o'clock
    21. used as an auxiliary to replace an earlier verb or verb phrase to avoid repetition: he likes you as much as I do
    22. (transitive) informal to visit or explore as a sightseer or tourist
    23. (transitive) to wear out; exhaust
    24. (intransitive) to happen (esp in the phrase nothing doing)
    25. (transitive) slang to serve (a period of time) as a prison sentence
    26. (transitive) informal to cheat or swindle
    27. (transitive) slang to rob
    28. (transitive) slang to arrest
    29. to convict of a crime
    30. (transitive) Austral informal to lose or spend (money) completely
    31. (transitive) slang chiefly Brit to treat violently; assault
    32. (transitive) slang to take or use (a drug)
    33. (transitive) taboo slang (of a male) to have sexual intercourse with
    34. do, do ainformal to act like; imitate: he's a good mimic – he can do all his friends well
    35. do or dieto make a final or supreme effort
    36. make doto manage with whatever is available
    n ( pl dos, do's)
    1. slang an act or instance of cheating or swindling
    2. informal chiefly Brit NZ a formal or festive gathering; party
    3. do's and don'tsinformal those things that should or should not be done; rules

    See also do away with, do byEtymology: Old English dōn; related to Old Frisian duān, Old High German tuon, Latin abdere to put away, Greek tithenai to place; see deed, doom
    do /dəʊ/ n ( pl dos)
    1. a variant spelling of doh
    Collins Concise English Dictionary © HarperCollins Publishers::
    do. abbreviation for
    1. ditto
    'do' also found in these entries:
    Collocations: do your [homework, chores], the do's and don'ts of [office behavior, social interaction], do you [know, think, believe, remember, want], more...

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