Within (preposition)

1. On the inside of.
2. Inside the limits or bounds of.
3. During the period of time of.

Origin:

Middle english with-inne, from with- + inne in.

Examples:

1. The city is within easy driving distance.
2. The problem was solved within an hour.
3. The store is within walking distance.
4. The package arrived within a week.
5. The deadline for the project is within two weeks.