w/o noun 6adjective 1adverb 1verb 1 noun6 •weight-percent (percentage calculated by relative mass) •Abbreviation of walkover. •Abbreviation of week of. •Abbreviation of write-off. •Abbreviation of week(s) old. •Abbreviation of wife of. adjective1 •Abbreviation of emulsion of water in oil. adverb1 •Abbreviation of without. verb1 •Abbreviation of write off.