within

noun

1. opposite side; bottom; other side; side hidden from view; undersurface; reverse side
2. rear; back; behind
3. lining; inside
4. in the shadows; behind the scenes; offstage; behind (someone's) back
5. more (to something than meets the eye); hidden side (e.g. of one's personality); unknown circumstances; different side
6. proof
7. opposite (of a prediction, common sense, etc.); contrary
8. inverse (of a hypothesis, etc.)
9. baseball bottom (of an inning); last half (of an inning)

noun

1. inside; within
2. usually kana while (e.g. one is young); during; within (e.g. a day); in the course of
3. usually kana among; amongst; (out) of; between (as 〜のうち)
4. usually kana in (secret, chaos, poverty, etc.); amidst; with (e.g. success) (also 裡, 裏; as 〜のうちに after a noun representing a state or condition)
5. within oneself; one's feelings; inner thoughts
6. usually kana we; our company; our organization
7. usually kana one's home; one's family (also 家)
8. my spouse; my husband; my wife
9. signed on behalf of (husband's name) by his wife (in a letter after the husband's name)
10. archaic imperial palace grounds
11. archaic emperor

pronoun

12. usually kana ksb I; me (primarily used by women and children)