lengthen🔊English → French/ˈleŋ(k)θən/1ə2 transitive verb[+ object] allonger🔊, [+ visit, life] prolonger🔊3 intransitive verb[shadows, queue] s’allonger🔊, [visit] se prolonger🔊, [days, nights] rallonger🔊Inflected forms (3)lengthened, lengthens, lengthening