1 noun of personsíniú masc c m uto put your signature to sthdo shíniú a chur le rud, do lámh a chur le rudupon signature of the formnuair a bheidh an fhoirm sínithe, ar shíniú na foirme2 adjective especially ART, MUS, FASH characteristicher signature stylea stíl inaitheanta féinthat was his signature songsin an t-amhrán a raibh sé aitheanta leis