informal1 noun skill, talentthere's a knack to cutting turftá bealach ann le móin a bhaint i gceartshe has a knack for arttá bua na healaíne aici, tá féith na healaíne inti2 noun unfortunate tendencyshe has a knack for insulting peopleis minic léi daoine a mhaslú, is nós léi daoine a mhaslú