(UK, Ireland) Half past; a half-hour (30 minutes) after the last hour. / (rare, see usage notes) A half-hour to (preceding) the next hour.

In two equal parts or to an equal degree. / In some part approximating a half. / Partially; imperfectly. / Practically, nearly.

(theater) A call reminding performers that the performance will begin in thirty minutes.

(transitive, obsolete) To halve.

(Britain, slang) Greatly; to a considerable extent.

(set phrase) Into two halves. / (set phrase) By a divisor of two; to a numerical value which is half of the original value.

Archaic spelling of half.

Archaic spelling of half.

(colloquial) By far; by a long chalk; to an excessive extent or degree, especially to the extent that it is negative, gets in the way, etc.

Used other than figuratively or idiomatically: see and, a, half. / (colloquial) An intensifier, used to emphasize great extent or degree.