1. one
2. single
3. a (article)
4. as soon as
5. entire; whole; all; throughout
6. "one" radical in Chinese characters (Kangxi radical 1)
7. also pr. yāo for greater clarity when spelling out numbers digit by digit

1. to read
2. to study (a subject)
3. to attend (a school)
4. to read aloud
5. to miss (sb)
6. idea
7. remembrance
8. twenty (banker's anti-fraud numeral corresponding to 廿 niàn)

classifier: 頓

1. (after a noun) between; among; amid
2. (used after certain bisyllabic words to form expressions indicating a short period of time, e.g. 弹指之间 tánzhǐzhījiān)