vacuum

UK:*UK and possibly other pronunciationsUK and possibly other pronunciations/ˈvækjʊəm/, /ˈvækjʊm/

US:USA pronuncation: IPAUSA pronuncation: IPA/ˈvækjum, -jəm/

US:USA pronunciation: respellingUSA pronunciation: respelling(vakyo̅o̅m, -yo̅o̅ əm, -yəm)


Inflections of 'vacuum' (nnoun: Refers to person, place, thing, quality, etc.):
vacuums
nplplural noun: Noun always used in plural form--for example, "jeans," "scissors."
vacua
nplplural noun: Noun always used in plural form--for example, "jeans," "scissors." (Rare)

WordReference Random House Learner's Dictionary of American English © 2020
vac•u•um /ˈvækyum, -yəm/USA pronunciation   n., pl.  -u•ums for 1, 2. 4, 5. -u•a /-yuə/USA pronunciation  for 1, 2. 4. ;
adj.;
 v. 

n. [countable]
  1. Physicsa space entirely empty of matter.
  2. Physicsan enclosed space from which matter, esp. air, has been partially removed so that the matter or gas remaining in the space exerts less pressure than the atmosphere.
  3. a space not filled or occupied;
    emptiness;
    void:The loss of his son left a vacuum in his life.
  4. vacuum cleaner.

adj. 
  1. Physicsof or relating to a vacuum.

v. 
  1. to clean with a vacuum cleaner: [+ object]to vacuum the rug.[no object]I vacuum on Fridays.
See -vac-.
WordReference Random House Unabridged Dictionary of American English © 2020
vac•u•um  (vakyo̅o̅m, -yo̅o̅ əm, -yəm),USA pronunciation n., pl.  vac•u•ums  for 1, 2, 4–6, vac•u•a (vakyo̅o̅m, -yo̅o̅ əm, -yəm),USA pronunciation for 1, 2, 4, 6;
adj.;
  v.

n. 
  1. Physicsa space entirely devoid of matter.
  2. Physicsan enclosed space from which matter, esp. air, has been partially removed so that the matter or gas remaining in the space exerts less pressure than the atmosphere (opposed to plenum).
  3. Physicsthe state or degree of exhaustion in such an enclosed space.
  4. a space not filled or occupied;
    emptiness;
    void:The loss left a vacuum in his heart.
  5. a vacuum cleaner or sweeper.
  6. Physicsa state of lowest energy in a quantum field theory.

adj. 
  1. of, pertaining to, employing, or producing a vacuum.
  2. (of a hollow container) partly exhausted of gas or air.
  3. pertaining to a device or process that makes use of a vacuum to accomplish a desired task.
  4. noting or pertaining to canning or packaging in which air is removed from the container to prevent deterioration of the contents.

v.t. 
  1. to use a vacuum cleaner on;
    clean with a vacuum cleaner:to vacuum rugs.
  2. to treat with any vacuum device, as a vacuum drier.

v.i. 
  1. to use a vacuum cleaner:to vacuum in the dining room.
  • Latin, neuter of vacuus empty
  • 1540–50

Collins Concise English Dictionary © HarperCollins Publishers::
vacuum /ˈvækjʊəm/ n ( pl vacuums, vacua /ˈvækjʊə/)
  1. a region containing no matter; free space
  2. a region in which gas is present at a low pressure
  3. the degree of exhaustion of gas within an enclosed space: a high vacuum, a perfect vacuum
  4. a sense or feeling of emptiness: his death left a vacuum in her life
  5. short for vacuum cleaner
  6. (modifier) of, containing, measuring, producing, or operated by a low gas pressure: a vacuum tube, a vacuum brake
vb
  1. to clean (something) with a vacuum cleaner: to vacuum a carpet
Etymology: 16th Century: from Latin: an empty space, from vacuus empty
'vacuum' also found in these entries (note: many are not synonyms or translations):
Collocations: use a vacuum cleaner, is afraid of the vacuum cleaner, replace the vacuum bag, more...

Forum discussions with the word(s) "vacuum" in the title:


Look up "vacuum" at Merriam-Webster
Look up "vacuum" at dictionary.com

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