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half

HAF/hæf/UKHAHF/hɑːf/

Pluralhalves

20 meanings of half

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  1. 1
    nouncountable
    One of two equal or nearly equal parts of something; the number or quantity equal to one divided by two.

    She poured the batter, keeping half for the next day.

    The two halves of the walnut shell fit together perfectly.

    UsageSay half the class or half of the class for a quantity. The plural is halves.

    Note

    The core noun. Old English healf could mean a side or a part as well as a half, and the word still divides loosely in everyday use. Precision is optional, and the smaller half of an apple is perfectly idiomatic. The plural is halves, and in the idiom you don't know the half of it the word names an unmeasured share of the truth.

    Checked 3 Nov 2026 · 1 fact

  2. 2
    adjective
    Amounting to one of two equal parts; equal to ½ or 50% of the whole.

    He worked a half day on Friday and left at noon.

    The recipe needs a half teaspoon of salt.

    UsageComes after a and before a unit: a half hour, a half cup. The pattern half an hour means the same.

    Oppositefull, whole

    Note

    English also has borrowed prefixes for the same idea, namely semi-, hemi- and demi-. Those attach inside words, while this native adjective stands as a separate word before the noun.

    Checked 2 Nov 2026 · 4 facts

  3. 3
    nouncountable
    One of the two equal periods into which a game such as soccer or basketball is divided.

    The home side dominated the opening half.

    Both goals came in the second half of the match.

    UsageUsually the first half or the second half, with in for when something happens: scored in the second half.

    Note

    Sports reckon time in halves as well as space: an association football match runs two halves of 45 minutes each, with a halftime interval between them. Added time is played at the end of each half, while extra time or overtime comes after both. Keep it apart from each side's end of the field, which divides the ground rather than the clock.

    Checked 2 Nov 2026 · 5 facts

    • A standard association football match has two halves of 45 minutes each. theifab.com
    • There is a halftime interval between the halves. theifab.com
    • Added time is played at the end of each half. footballrules.com
    • Extra time, when required, follows the two normal halves. theifab.com
    • The field is also divided into two spatial halves. theifab.com
  4. 4
    adverb
    To the extent of one half, or roughly one half.

    Her mother is Korean and her father is Mexican, so she is half Korean.

    The friends divided the winnings half and half.

    UsageGoes directly before the word it describes: half Korean, half French. The set phrase half and half means in two equal shares.

  5. 5
    partlyadjective
    Amounting to only a partial or incomplete portion; partial or imperfect.

    His half apology satisfied no one at the meeting.

    The plan was based on half truths and rough guesses.

    UsageOften joined to its noun with a hyphen: a half-truth, a half-smile, though open spellings like half truth also appear.

    Similarpartial, incomplete

    Oppositefull, complete, whole

    Note

    Here the word is loose rather than exact: a half truth is not fifty percent true, only incompletely so. It often joins its noun with a hyphen, as in Tennyson's half-consent of 1847, though half truth is also written open. The sense leans toward fault and imperfection, where the exact fifty-percent adjective is neutral.

    Checked 30 Oct 2026 · 2 facts

    • Tennyson used the hyphenated expression “half-consent” in The Princess. en.wikisource.org
    • The expression appears in the poem's first edition, published in 1847. en.wikisource.org
  6. 6
    adverb
    Partially or incompletely; only to a limited extent.

    The repairs were left half done through the winter.

    He listened only half attentively to the long speech.

    Similarpartly, partially, incompletely

    Oppositefully, completely, entirely, wholly

  7. 7
    nounslangcountable
    A brother or sister who shares only one parent rather than both.
    So for Richard and Barbara, Jeff and Kari, the impossibly varied collection of steps and halves that is another legacy of my father.
    2016, Robert M. Herzog, A World Between
    Note

    A slang clipping that drops the noun from half brother or half sister and lets the adjective stand alone. It is most at home in the plural, beside its partner steps: Robert M. Herzog's A World Between (2016) speaks of "the impossibly varied collection of steps and halves."

    Checked 2 Nov 2026 · 4 facts

Practice

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Origin

From Middle English 'half', from Old English 'healf' ('half', 'side', 'part'), from Proto-West Germanic *halb and Proto-Germanic *halbaz. It is related to Dutch 'half', German 'halb', and Swedish 'halv'.

Checked 1 Nov 2026 · 4 facts

  • English half comes from Middle English half and Old English healf, meaning half, side, or part. en.wiktionary.org
  • Old English healf descends from Proto-West Germanic *halb and Proto-Germanic *halbaz. en.wiktionary.org
  • English half is related to Dutch half and German halb. en.wikisource.org
  • Swedish halv is related to English half through their shared Proto-Germanic ancestor. en.wiktionary.org