(philately) Abbreviation of perforated. When followed by a number, eg, perf 14, this indicates the number of perforations per two centimetres. / (grammar) Abbreviation of perfective.

(informal) Clipping of performance. / (informal) Clipping of perforation. (of postage stamps or photographic film)

(informal) Clipping of perforate.

Alternative form of perf

plural of perf

(medicine, colloquial) perforated

present participle of perf

Done only or merely to conform to a minimal standard or to fulfill a protocol or presumptive duty. / Performed in a careless or indifferent manner as a thing of rote.

Fitting its definition precisely. / Having all of its parts in harmony with a common purpose. / Without fault or mistake; thoroughly skilled or talented. / Excellent and delightful in all respects.

(grammar) The perfect tense, or a form in that tense. / (video games) A perfect score; the achievement of finishing a stage or task with no mistakes.