1. one sheet; one page; one leaf
2. one block of tofu; one serving (in a restaurant)
3. one long and narrow thing (e.g. guns, scissors, spades, hoes, inksticks, palanquins, candles, jinrikishas, shamisen, oars, etc.)
also written as 一挺, 一梃
4. one chō (unit of distance, 109.09 m)
5. one game; one task
6. well then; come then