Word
Forms
Infinitive
half
Past
halved
Past participle
halved
Definitions
01one of two equal parts
A1 · Beginner Countable noun
n. one of two equal parts that make up a whole.
n. one of two equal or approximately equal parts into which a whole is or can be divided.
“She gave half of her sandwich to her friend because he forgot his lunch.”
“The property was divided into two equal halves, with each sibling receiving a portion of the fertile farmland near the river.”
Pitfall
I cut the apple in two halfs.
I cut the apple into two halves.
The plural of 'half' is 'halves'.
02sports/games
A2 · Elementary Countable noun Sports
n. one of the two main periods of time in a sports game.
n. either of the two equal periods into which a game is divided.
“The team played much better in the second half and scored two goals.”
“After a scoreless first half, the coach made several tactical substitutions to increase the team's offensive pressure.”
03a drink
B1 · Intermediate Countable noun British English
n. half a pint of beer or another drink.
n. a measure of liquid, specifically half a pint of beer or cider.
“I'll just have a half of bitter, please, as I am driving later.”
“He ordered a half of local ale while waiting for his colleagues to arrive at the pub for the evening.”
Antonyms
04partial or 50%
A2 · Elementary
adj. being one of two equal parts of something.
adj. consisting of a half or approximately a half; partial in nature.
“He drank a half glass of water before going for a run.”
“The project was left in a half-finished state after the primary investor suddenly withdrew their funding.”
Synonyms
05family relations
B1 · Intermediate
adj. related through only one parent.
adj. sharing only one parent rather than two.
“She has a half brother who lives in Australia.”
“Although they are half sisters, they grew up in the same household and remain exceptionally close as adults.”
Antonyms
06partially
B1 · Intermediate
adv. partly or not completely.
adv. to the extent of a half; partially or imperfectly.
“I was half asleep when the phone rang this morning.”
“The instructions were only half understood, leading to several avoidable errors during the assembly process.”
Antonyms
07time-telling
A2 · Elementary British English · Dialect
prep. thirty minutes past the hour.
prep. used to indicate thirty minutes past a specific hour; often used without 'past' in certain dialects.
“The train leaves at half eight, so we should get to the station early.”
“In many parts of the UK, people say 'half six' to mean 6:30, which can confuse learners used to the full 'half past' construction.”
Usage
In British English, 'half' followed by a number (e.g., 'half ten') is a common shorthand for 'half past ten'.
Synonyms
08theatre warning
C1 · Advanced Theater Technical
interj. a call to tell actors that the show starts in thirty minutes.
interj. a traditional call given to performers thirty minutes before the commencement of a performance.
“The stage manager shouted 'the half' to let the cast know it was time to get ready.”
“When the call for the half was announced, the lead actress began her final vocal warm-ups in the dressing room.”
Collocations
Common phrases and expressions where native English speakers use the word “half” in context.
Etymology
From Middle English half, halfe from Old English healf (“half”); as a noun, 'half', 'side', 'part', from Proto-West Germanic halb, from Proto-Germanic halbaz. Cognates Cognate with Old Saxon, Old Frisian, and Old Dutch half, West Frisian heal, Dutch half, German halb, Swedish, Danish and Norwegian halv, Icelandic hálfur and Gothic 𐌷𐌰𐌻𐌱𐍃 (halbs). Compare halve, behalf.
Etymology adapted from Wiktionary, available under CC BY-SA 4.0.
Related words
Idioms
03. do by halves
04. go halves
05. half a brain
06. half a head
07. half a mind
08. half joke
09. half murder
Show all 17
11. not half bad
12. other half
14. six of one, half a dozen of the other
15. the half of it
Domains
- Exam level
- CambridgeCambridgeCambridge English QualificationsThe exam suite from Cambridge University Press & Assessment, from A1 Movers up to C2 Proficiency. The benchmark names double as CEFR labels.A2 KeyIELTSIELTSInternational English Language Testing SystemThe 0–9 band test co-owned by the British Council, IDP, and Cambridge. Used for university entry, work, and migration.3.0–4.0TOEFL iBTTOEFL iBTTest of English as a Foreign Language, Internet-Based TestETS's academic English test, the standard route for US university admissions. Scored 0–120, with a 1–6 scale since 2026.1–6 scale: 2.0–2.524–43TOEICTOEICTest of English for International CommunicationETS's workplace English test, big in Japan and Korea. Listening & Reading scores 10–990 and tops out at C1.225–549
- Frequency
- Very common
- Level
- A2 · ElementaryOxford
- Updated
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QR code
englishreference.com/q/half
「カタカナ語」 data: JMdict (EDRDG), CC BY-SA 4.0