Nouns

(n)surprisethe astonishment you feel when something totally unexpected happens to you
(n)surprisea sudden unexpected event
(n)surprise, surprisalthe act of surprising someone

Verbs

(v)surprisecause to be surprised“The news really surprised me”
(v)surprisecome upon or take unawares“She surprised the couple”, “He surprised an interesting scene”
(v)storm, surpriseattack by storm; attack suddenly