fall in, v.i.1a(Of roof, trench, etc.) Titeann isteach. b(Of cheeks) Súnn. 2Mil: (Of troops) Luíonn isteach. 3a(Of lease) Tá (léas) istigh, tagann deireadh le (léas), bTá (fiacha) le híoc, tá cairde (na bhfiach) caite. 4aTo fall in with s.o., bualadh le duine. bTo fall in with s.o.'s opinion, géilleadh do thuairim duine. To fall in with a proposal, aontú m le tairiscint. (Of plan, etc.) To fall in with . . ., réiteach le . . ., teacht le ...