26984 words

ascertain

3 definitions • 4 examples
1
to discover something:

Examples:

The police have so far been unable to ascertain the cause of the explosion.
[ + question word ] Have you ascertained whether she's coming or not?
2
to make certain of something:

Examples:

[ + that ] I ascertained that no one could overhear us before I told Otto the news.
3
to discover a fact; to make certain:

Examples:

The fire department has been unable to ascertain the cause of the fire.

Navigation