simple past tense and past participle of strike
"The hammer struck the nail hard, but it had also been struck by bad luck earlier that day."
In plain English: Struck is the past tense of strike, meaning to hit something hard with your hand or another object.
"The loud noise struck everyone in the room at once."
A surname.
"The mayor was born in Stratford but moved to a town named Struck when he became a lawyer."