A booming laugh startled him.

Malcolm's laugh startled the patrons at the next table.

Lewis Liffey's short, bitter laugh startled her.

Yet the laugh that sounded through the sanctum would have startled Mark Tyrell had he been there to hear it.

A low laugh startled them all, and in an instant they saw the cause of it.

A low laugh startled her.

A soft laugh startled me until I realized that I made the noise myself.

Then a sudden whispered laugh startled me.

His laugh had startled someone nearby.

Her brittle laugh startled him so much that his body twitched.