February UK /ˈfɛb.ɹʊ.ə.ɹi/US /ˈfɛb.ɹuˌɛɹi/ noun1 •The short month following January and preceding March in the Roman, Julian, and Gregorian calendars, used in all three calendars for intercalation or addition of leap days.Susan was born on February 29. formsFebruaries · Februarys