What is another word for "halves"?

Roget's Thesaurus (1911) lists these synonyms for "halves": addle, alone, anvil, arrear, battle, break, caret, collapse, complete, crude, defalcation, default, defect, defective, deficiency, deficient, deficit, discontinuity, down, drawn, drop, failing, fall, fire, forget, game, gap, going, half, hand, hang, hole, hollow, immaturity, imperfect, imperfection, incomplete, incompletely, incompleteness, inexecution.