1 (also US in behalf of) preposition instead of, representingthar ceannin ainmon behalf of the whole teamthar ceann na foirne go léirPaul went on my behalfchuaigh Pól thar mo cheannsa2 preposition in order to help sbar son c m uar mhaithe le c m uto speak up on behalf of sblabhairt amach ar son duinetheir work on behalf of childrena gcuid oibre ar mhaithe le páistí3 preposition on account ofar son c m uI feel very happy on their behalftá mé an-sásta ar a son