1. a; an; one
2. the whole (afternoon, summer vacation etc)

1. Combination of the numeral 一 (“one”) and the generic classifier 個／个: a; an; one
2. same

1. slow-witted
2. blockhead
3. log (of wood, timber etc)

classifiers: 塊, 根

1. bowl
2. cup

classifiers: 隻, 個