English · Daily Life
within
/wɪˈðɪn/
[/wɪˈðɪn/]
inside; before a time ends
Intermediatepreposition
Definition
Inside the limits of a place, group, or period of time.
Example
Please reply within three days.
Please reply within three days.
Etymology
From Old English 'wiðinnan', meaning 'on the inside'.
How & Where It’s Used
Common for deadlines and for limits in space.