- 1[intransitive, transitive] to reduce by a half; to make something reduce by a half The shares have halved in value. halve something The company is halving its prices.
- 2[transitive] halve something to divide something into two equal parts
NAmE//hæv//Verb Forms present simple I / you / we / they halve
he / she / it halves
past simple halved
-ing form halving