adjective: (philately) Abbreviation of perforated. When followed by a number, eg, perf 14, this indicates the number of perforations per two centimetres.
adjective: (grammar) Abbreviation of perfective. [(grammar) Of, or relative to, the perfect tense or perfective aspect.]
adjective: (colloquial) Clipping of perfect. [Fitting its definition precisely.]
noun: (informal) Clipping of performance. [The act of performing; carrying into execution or action; execution; achievement; accomplishment; representation by action.]
noun: (informal) Clipping of perforation. (of postage stamps or photographic film) [The act of perforating or the state of being perforated.]
verb: (informal) Clipping of perforate. [(transitive) To pierce; to penetrate.]
