Definitions

1. preposition

in or to the inside of something

“She is staying within the city limits.”

2. adverb

used to indicate position or movement from the inside

“The package was delivered within hours.”

3. noun

the inside of something

“The within of the hollow tree was dark and eerie.”

4. verb

to confine or restrict someone or something to a particular place or situation

“The new policy will keep the company within budget.”