I. |aprə|pō adverb
Etymology: French à propos, literally, to the purpose
1. : at an opportune time : seasonably , fitly
your letter comes apropos as usual — O.W.Holmes †1935
2. : by the way : incidentally
apropos , are there any cases of women being held captive by the sirens — Norman Douglas
II. adjective
: to the point : appropriate , pertinent , relevant
have some apropos comments — Dorothy Barclay
Synonyms: see relevant
III. preposition
: with respect to : concerning , regarding
apropos the return of young Americans to lyricism — Peter Viereck
— often used with of
his remark to Emerson apropos of diplomas — H.S.Canby