to refuse to have anything to do with, trade with (a person, business firm, country etc) for a reason

ban; refrain from using

close down

officially forbid

to prevent a person by a regulation (from doing or having something)

prohibit

the state of disapproving

condemnation

to prevent (a person) (from getting in somewhere)

expel, forbid

to refuse to meet, talk to, (a person)

exile, banish

to denounce (a person, practice etc) as dangerous

condemn, exclude

a statement of disapproval or objection

complaint, disapproval

a constitutional right of a sovereign, president, legislative assembly or other body, or a member of the United Nations Security Council, to reject of forbid something; statement that rejects or prohibits something

refusal of permission