No Entry; No Trespassing; No Admittance; off-limits; restricted; forbidden
ban; prohibition; interdiction; injunction
ban on entering (a building, venue, etc.)
prohibition of use (of); ban on using (something)
love ban; relationship ban; talent agency rule forbidding its clients from getting involved in romantic relationships
prohibited item; banned item
curfew; lockdown; grounding
Do Not Enter; No Entry; Wrong Way
negative statute; law against something
No Entry!; no thoroughfare; passage prohibited; entry is prohibited
word not allowed to be broadcast (on TV or radio); word prohibited on TV and radio; unbroadcastable word
no food or drink (e.g. as a sign in a library, etc.); no eating or drinking
no photographs; no photography
No Parking; Parking Prohibited; prohibition of parking; parking ban
interdict; prohibition order; writ of prohibition
ban on import; import ban; import prohibition; prohibition of importation
ban (from accessing a website, network service, etc.); blocking access
prohibited item; banned substance
reimposition of an embargo; reprohibition
period of prohibition of remarriage; period after the cessation of a marriage in which the woman is prohibited from remarrying (100 days)
No Crossing; Do Not Cross
registration block (domain names, email addresses, etc.); blacklisting; registration ban (in soccer)
Not to be taken out; Reference Only
physical forwarding prohibited; PD PR
Organization for the Prohibition of Chemical Weapons; OPCW