Meaning of HALF in English
■ noun ( plural halves )
1》 either of two equal or corresponding parts into which something is or can be divided.
↘either of two equal periods into which a sports game or performance is divided.
2》 Brit. informal ~ a pint of beer.
3》 informal a ~-price fare or ticket.
4》 Golf a score for a hole that is the same as one's opponent's.
5》 a ~back.
■ predeterminer & pronoun an amount equal to a ~.
■ adjective forming a ~.
■ adverb to the extent of ~.
↘[often in combination ] partly: ~-cooked.
~ a chance informal the slightest opportunity.
the ~ of it [usu. with negative ] informal the most important part or aspect.
~ one ( two , etc.) informal way of saying ~ past one (two, etc.).
~ past one ( two , etc.) thirty minutes after one (two, etc.) o'clock.
~ seas over Brit. informal, dated fairly drunk.
not do things by halves do things thoroughly or extravagantly.
1》 not nearly.
2》 informal not at all.
3》 Brit. informal to an extreme degree: she didn't ~ flare up!
too —— by ~ excessively ——: too superstitious by ~.
OE ~ , healf , of Gmc origin.
Concise Oxford English vocab. Сжатый оксфордский словарь английского языка. 2004