1.
inside, within
The interior part of something.
2.
among, of (a group)
Within a specified group or set.
3.
while, during
Within a time period; before something changes.
4.
one's home, one's group
Refers to one's own home, family, or organization.
内 has multiple meanings related to 'inside' or 'within.'
Grammar patterns:
- 〜の内: among ~, of ~
- 〜内に: while ~, before ~ (changes)
- 〜ない内に: before ~ happens
In-group usage:
- 内: my home, our family, our company (humble)
- 内の + [person/thing]: my/our ~
Contrast:
- 内 (inside, in-group) vs. 外 (outside, out-group)
- 内 can be humble; お宅 is the polite equivalent for others' homes
Note: The sense of 'inside' is abstract - for physical interiors, 中 is more common.