VERBS

be, look
bang, blow, clang, click, clunk, slam, slide, swing
The window blew shut. The elevator door slid shut
remain, stay
be clenched, be jammed
His jaw was clenched shut
bang sth, kick sth, leave sth, pull sth, slam sth, slide sth, snap sth
I'll leave the window shut for now. He slammed the case shut. She snapped shut a file on her desk
keep sth
The gates are always kept shut. (figurative) Afraid to ask seemingly stupid questions, I kept my mouth shut

ADV

firmly, properly, tightly
The door was firmly shut

VERBS

be, look
The bars all look shut to me
remain

PREP

for
The park is now shut for the winter