halveEnglishOxford English Thesaurushalve verb 1 halve the tomatoes and scoop out the pips: cut in half, divide into two equal parts, divide in two, split in two, sever in two, divide equally, share equally, bisect. 2 interest rates have halved: reduce by fifty per cent, decrease by fifty per cent, lessen by fifty per cent.halve Oxford Dictionary of English