acht1, m. (gs. ~a, pl. ~anna).1. Decree, enactment. ~ (Parlaiminte), act (of Parliament). Prov:Ná déan ~ agus ná bris ~, follow traditional customs. 2. Compact. Rinne siad ~ eatarthu féin, they made a mutual compact. 3. Condition. Ar ~ go, on condition that. Chuir sé ~ ann, he attached a condition to it. Gan ~, unconditionally. 4. (In phrase) D’~ is d’áirithe, ever and always, constantly.