(intransitive, of a person, animate object following “with”) To come to have feelings of love, particularly romantic love.

(US) The middle of fall.

(US) Happening in the middle of fall.

(US) In the middle of fall.

(cricket) The side's total score when a particular batsman was out.

(intransitive, idiomatic) To be unsuccessful, come to nothing; to be cancelled; not to proceed.

(geomorphology) A geomorphologic unconformity marking a boundary between an upland region and a plane; sometimes marked by a series of waterfalls on rivers that cross it.

(baseball) The World Series.

(informal) One who is gullible and easily duped. / (informal) A scapegoat.

Synonym of falling out (“rift following a disagreement or quarrel”)