half

[ haf ]

noun

, plural halves [havz].

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. Compare quarter ( def 10 ).
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: partially, somewhat, barely

3. to some extent; almost:

   half recovered.

half

¹

/ hɑːf /

noun

1. 1. either of two equal or corresponding parts that together comprise a whole
   2. a quantity equalling such a part

      half a dozen

2. half a pint, esp of beer
3. a small drink of spirits, esp whisky
4. sport the half of the pitch regarded as belonging to one team
5. golf an equal score on a hole or round with an opponent
6. (in various games) either of two periods of play separated by an interval (the first half and second half )
7. a half-price ticket on a bus, train, etc
8. short for half-hour
9. short for halfpenny
10. sport short for halfback
11. obsolete.
    a half-year period
12. better half humorous.
    a person's wife or husband
13. by half
    by an excessive amount or to an excessive degree

    he's too arrogant by half

14. by halves
    used with a negative without being thorough or exhaustive

    we don't do things by halves

15. go halves
    often foll byon, in, etc
    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

determiner

1. 1. being a half or approximately a half

      half the kingdom

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

      half of them came

adjective

1. not perfect or complete; partial

   he only did a half job on it

adverb

1. to the amount or extent of a half
2. to a great amount or extent
3. partially; to an extent
4. half two informal.
   30 minutes after two o'clock
5. have half a mind to
   to have the intention of
6. not half 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

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

Grammar Note

See well ¹.

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

Word History and Origins

Origin of half¹

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

Idioms and Phrases

Idioms

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

   She was too talented by half for her routine role.

2. half again as much / many, as much as 50 percent more:

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

3. half in two, Southern U.S. (chiefly Gulf States). in or into two parts; in half:

   Cut the cake half in two.

4. in half, divided into halves:

   The vase broke in half.

5. not half,
   1. not at all; not really:

      His first attempts at painting are not half bad.

   2. half ( def 20 ).
6. 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.

More idioms and phrases containing half

• 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
• halfway
• halves

Example Sentences

Some estimates suggest that half the global population could be obese by 2035.

From Salon

A National Institute of Justice study suggests that undocumented migrants in the US are arrested for violent and drug crimes at less than half the rate of native-born citizens.

From BBC

Chu struggles to give the burgeoning friendship between Elphaba and Glinda the same thrust as he does the film’s central plot, which has a more momentous push in the movie’s second half.

From Salon

In addition to spin polarizing half the fuels, the percentage of deuterium would be increased from the usual amount of roughly 60% or more.

From Science Daily

Additionally, the study shows about half of the cultural knowledge hunter-gatherer children and adolescents acquire comes from people they are not related to.

From Science Daily

Related Words

• partly