QF

== English == === Etymology 1 Abbreviation === ==== Noun ==== QF (plural QFs) (sports) Initialism of quarter final. Coordinate terms: R1, R2, R3, SF, F, FA, FB, FC, FD ==== Adjective ==== QF (not comparable) (military, chiefly nautical, of artillery) Initialism of quick-firing. === Etymology 2 === Q (“dorne aircraft”) +‎ F (“fighter aricraft”) ==== Noun ==== QF (uncountable) (US, military, aviation) Abbreviation of drone fighter: a formerly crewed fighter aircraft turned into a drone, which may be towed, autonomous, or, remotely piloted; usually single use, usually a practice target Synonyms: drone fighter, fighter drone Hypernyms: Q, drone, F, fighter Hyponyms: YFQ, XFQ Coordinate term: FQ ("fighter drone": a purpose-built drone that is a fighter)