Answer: BANS

AnswerCrossword Clue
BANSSome dictators' proclamations
BANSEmbargoes.
BANSInterdictions.
BANSSays no.
BANSAnathemas
BANSTaboos
BANSInterdicts
BANSExcommunicates
BANSSome diktats
BANSRules out
BANSDeclares off-limits
BANSMakes impossible
BANSMost of the Ten Commandments, basically
BANSBlacks out
BANSProhibits.
BANSHarsh punishments
BANSRestrictions, like the ones on PA systems that necessitate the "human microphone" at Occupy Wall Street
BANSRihanna lyric "Got my Ray ... on and I'm feeling hella cool tonight"
BANSWhat Walmart does to explicit albums
BANSResults of arms treaties, sometimes
BANSCensures
BANSCriminalizes, perhaps
BANSSome last a lifetime
BANSProscriptions
BANSSome school edicts
bansprohibition
bansto prohibit
bansBAN, to prohibit (to forbid with authority)
BANSOfficially disallows
BANSOutlaws
BANSForbids
BANSDisallows
BANSBlackballs
BANSProscribes
BANSProhibitions
BANSProhibits
BANSDoesn't allow
BANSMakes verboten
BANSMakes illegal
BANSPuts the kibosh on