(botany) Any one of several trees or shrubs with yellow or bright red flowers, such as Rhododendron arboreum, Brachychiton acerifolium, or Delonix regia.

plural of flame war

(idiomatic) A previous girlfriend or boyfriend; a former romantic partner, especially one for whom one still has romantic feelings.

plural of flamenco guitar

Alternative form of flabbergasted

(intransitive) To flare; to become inflamed. / (intransitive, idiomatic) To suddenly become extremely angry.

plural of flamboyer

(botany, archaic) Any of various trees in the East and West Indies with brilliant blossoms, probably species of Caesalpinieae, especially of Delonix and Caesalpinia, all of which were formerly in the obsolete genus Poinciana.

(philosophy) A philosophical razor which states that what cannot be settled by experiment is not worth debating.

(derogatory) Burning (catching fire) during execution by electric chair.