to strike or occur to with a sudden feeling of wonder or astonishment, as through unexpectedness

Her beauty surprised me.

to come upon or discover suddenly and unexpectedly

We surprised the children raiding the cookie jar.

to make an unexpected assault on (an unprepared army, fort, person, etc.).

to elicit or bring out suddenly and without warning

to surprise the facts from the witness.

to lead or bring unawares, as into doing something not intended

to surprise a witness into telling the truth.

an act or instance of surprising or being surprised.

something that surprises someone; a completely unexpected occurrence, appearance, or statement

His announcement was a surprise to all.

an assault, as on an army or a fort, made without warning.

a coming upon unexpectedly; detecting in the act; taking unawares. ?

take by surprise

to come upon unawares.

to astonish; amaze

The amount of the donation took us completely by surprise.