Antonym: whole. Similar words: in half, halfway, behalf, on behalf of, whale, hallway, shallow, malfunction. Meaning: [hælf] 
n. 1. one of two equal parts of a divisible whole 2. in various games or performances: either of two periods of play separated by an interval. adj. 1. consisting of one of two equivalent parts in value or quantity 2. partial 3. (of siblings) related through one parent only. adv. partially or to the extent of a half.
n. 1. one of two equal parts of a divisible whole 2. in various games or performances: either of two periods of play separated by an interval. adj. 1. consisting of one of two equivalent parts in value or quantity 2. partial 3. (of siblings) related through one parent only. adv. partially or to the extent of a half. 
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151. Half of the forest was cut down to make room for the road.
152. When he condescended to speak, he contradicted himself three or four times in the space of half an hour.
153. Our team gained / had the upper hand in the second half.
154. She now and then drowsed away into a half sleep.
155. About half the population in the country is still illiterate.
156. When the candle was only half an inch high it flickered out and the room became dark.
157. He arrived with a police escort shortly before half past nine.
158. The rich businessman endowed the hospital with half his fortune.
159. The factory will have to lose half of its 1000-strong workforce.
160. They spent half the time sniggering at the clothes people were wearing.
161. Almost two and a half million war dead are enshrined at Yasukuni.
162. It six of one and half a dozen of the other.
163. He spent two and a half weeks with us in June 1986.
164. It's two and a half metres high and one metre wide.
165. A poor game was redeemed in the second half by a couple of superb goals from Anthony Edwards.
166. The dollar surged against the yen in the final half hour of trading.
167. If you cut a round fruit into two, each half is a hemisphere.
168. The home team squandered a number of chances in the first half.
169. The nearest bank is about half a mile down the road.
170. In Britain, half of all violent crime is perpetrated by people who have been drinking alcohol.
171. She conjured up a three-course meal in half an hour!sentencedict.com/half.html
172. Half way up the mountain a sudden, sharp wind blew up.
173. Children travel half fare.
174. It took us half an hour to inflate the dinghy.
175. Roughly half the class are Spanish and the others are a mixture of nationalities.
176. Let's reduce the passage to half the number of words.
177. I'm just going round to Martha's for half an hour.
178. He weighed out half pound of coffee beans to them.
179. The pocket-sized striker scored two goals in the second half.
180. I've been waiting for the bus for half an hour.
More similar words: in half, halfway, behalf, on behalf of, whale, hallway, shallow, malfunction, hallelujah, challenged.