before a particular period of time has passed; during a particular period of time

not further than a particular distance from something

a house within a mile of the station

Is it within walking distance?

That question is not within the scope of this talk.

We are now within range of enemy fire.

He finds it hard to live within his income .

The noise seems to be coming from within the building.

There is discontent within the farming industry.

Despite her grief, she found a hidden strength within herself.

LEARNit Dictionary