throughout the whole time that something happens
It snowed nonstop during the night.
Please keep silent during the movie.
✦ From Middle English, borrowed from Old French durant “enduring”, present participle of durer “to last”, from Latin dūrāre “to harden, endure”.
at any time within a period or event, but not necessarily for the whole of it
I had a quick snack during the break.
She met many friends during her trip to Spain.
✦ Same origin as the primary sense, developing a looser meaning of occurrence within a span of time.
to suffer something unpleasant or difficult for a long time without giving up
The marathon runners endured blistering heat to reach the finish line.
During the outage, the family endured three days without electricity.
✦ From Middle English enduren, from Old French endurer, based on Latin indurare “harden”.
to continue to exist or remain strong for a long time
The small stone bridge has endured for over 500 years.
True friendships endure long distances and time.