W: (adj) unofficial [Opposed to: official] (not having official authority or sanction) "a sort of unofficial mayor"; "an unofficial estimate"; "he participated in an unofficial capacity"
W: (n) office [Related to: official] (an administrative unit of government) "the Central Intelligence Agency"; "the Census Bureau"; "Office of Management and Budget"; "Tennessee Valley Authority"
S: (adj) official (verified officially) "the election returns are now official"
S: (adj) confirmed (having been established or made firm or received the rite of confirmation) "confirmed reservations"; "received confirmed reports of casualties"; "a confirmed Catholic"