Definition of "cira" []

• A terrorist organization formed in Ireland in 1994 as a clandestine armed wing of Sinn Fein (noun)

WordNet. Princeton University. 2010.

• "Early Hackers (cira 1975-79) knew the computer was political."
• "Volokh was saying what really is the difference between “restoring” circa 1789 — which, according to the argument, is the same as restoring cira 1930 — and “restoring” circa 1992?"
• "When I first joined the Seafarers International Union, cira 1960 I had to pay union dues back to 1947."