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View synonyms for

half

[haf]

noun

plural

halves 
  1. one of two equal or approximately equal parts of a divisible whole, as an object, or unit of measure or time; a part of a whole equal or almost equal to the remainder.

  2. a quantity or amount equal to such a part (½).

  3. Sports.either of two equal periods of play, usually with an intermission or rest period separating them.

  4. one of two; a part of a pair.

  5. Informal.

    1. half dollar.

    2. the sum of 50 cents.

      Four dimes and two nickels make a half.

  6. Baseball.either of the two units of play into which an inning is divided, the visiting team batting in the first unit and the home team batting in the second.

  7. Football.a halfback.

  8. British Informal.

    1. a half-crown coin.

    2. the sum of a half crown; two shillings, sixpence.

    3. a half pint.

      He ordered a half of ale.



adjective

  1. being one of two equal or approximately equal parts of a divisible whole.

    a half quart.

  2. being half or about half of anything in degree, amount, length, etc..

    at half speed; half sleeve.

  3. partial or incomplete.

    half measures.

adverb

  1. in or to the extent or measure of half.

  2. in part; partly; incompletely.

    half understood.

    Synonyms: , ,
  3. to some extent; almost.

    half recovered.

half

1

/ ɑː /

noun

    1. either of two equal or corresponding parts that together comprise a whole

    2. a quantity equalling such a part

      half a dozen

  1. half a pint, esp of beer

  2. a small drink of spirits, esp whisky

  3. sport the half of the pitch regarded as belonging to one team

  4. golf an equal score on a hole or round with an opponent

  5. (in various games) either of two periods of play separated by an interval (the first half and second half )

  6. a half-price ticket on a bus, train, etc

  7. short for half-hour

  8. short for halfpenny

  9. sport short for halfback

  10. obsoletea half-year period

  11. humorousa person's wife or husband

  12. by an excessive amount or to an excessive degree

    he's too arrogant by half

  13. (used with a negative) without being thorough or exhaustive

    we don't do things by halves

    1. to share the expenses (of something with one other person)

    2. to share the whole amount (of something with another person)

      to go halves on an orange

“Collins English Dictionary — Complete & Unabridged” 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

determiner

    1. being a half or approximately a half

      half the kingdom

    2. ( as pronoun; functioning as sing or plural )

      half of them came

“Collins English Dictionary — Complete & Unabridged” 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

adjective

  1. not perfect or complete; partial

    he only did a half job on it

“Collins English Dictionary — Complete & Unabridged” 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

adverb

  1. to the amount or extent of a half

  2. to a great amount or extent

  3. partially; to an extent

  4. informal30 minutes after two o'clock

  5. to have the intention of

  6. informal

    1. not in any way

      he's not half clever enough

    2. really; very; indeed

      he isn't half stupid

    3. certainly; yes, indeed

“Collins English Dictionary — Complete & Unabridged” 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

half-

2

prefix

  1. one of two equal parts

    half-moon

  2. related by one parent only

    half-sister

  3. not completely; partly

    half-hardy

“Collins English Dictionary — Complete & Unabridged” 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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Grammar Note

See well 1.
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Word History and Origins

Origin of half1

before 900; Middle English; Old English h ( e ) alf; cognate with German Halb, Old Norse halfr, Gothic halbs
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Word History and Origins

Origin of half1

Old English healf; related to Old Norse halfr, Old High German halb, Dutch half
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Idioms and Phrases

Idioms
  1. by half, by very much; by far.

    She was too talented by half for her routine role.

  2. not half,

    1. not at all; not really.

      His first attempts at painting are not half bad.

    2. half.

  3. half again as much / many, as much as 50 percent more.

    This mug holds half again as much coffee as the smaller one.

  4. not the half of, a significant yet relatively minor part of something that remains to be described in full: Also not half of, not half.

    He accused them of being responsible for the error, and that's not the half of the story.

  5. half in two, in or into two parts; in half.

    Cut the cake half in two.

  6. in half, divided into halves.

    The vase broke in half.

In addition to the idioms beginning with half, also see at half-mast; better half; by half; glass is half full; go halfway; go off (half-cocked); in half; not bad (half bad); six of one, half dozen of the other; time and a half; with half an eye. Also see under halfway; halves.
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Example Sentences

Examples have not been reviewed.

Such an action hadn’t been taken in more than half a century.

From

For the other half of patients, the chance of being named gets a little smaller with every day that the phone doesn’t ring.

From

Indonesia now accounts for more than half of the world's nickel mine production, according to a report last year by the Institute for Energy Economics and Financial Analysis.

From

This works out as less than half of the National Living Wage.

From

Leinster led 19-0 at half-time and Conan believes the strong defensive effort to shut out South African visitors Bulls after racing into the lead helped his side over the line in the second half.

From

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Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.

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Haleyhalf-a-crown