n. 1 best group or category. 2 best accommodation in a train, ship, etc. 3 mail given priority. 0 highest division in an examination. adj. &adv. (firstclass) 1 of or by the first class. 2 excellent.
n. 1 best group or category. 2 best accommodation in a train, ship, etc. 3 mail given priority. 0 highest division in an examination. adj. &adv. (firstclass) 1 of or by the first class. 2 excellent.