dian1, f. (gs. déine).Lit: Name of a class of syllabic metre.
dian2, a. (gsm. déin, gsf. & comp. déine, npl. ~a).Intense, vehement; hard, severe. Tine dhian, intense fire. Tuile dhian, strong flood. Buinne ~ díleann, rushing torrent of water. Frasa ~a deor, floods of bitter tears. Rás ~, strenuous race. Buille ~, hard blow. Geimhreadh ~, rigorous winter. Comórtas ~, tough competition. Máistir ~, hard taskmaster. Breithiúnas ~, severe judgment. Bheith ~ ar dhuine, to be hard on s.o. Chuaigh sé ~ air, it went hard with him. Ag obair go ~, working hard. ~ díbhirceach, ~ dásachtach, fast and furious.