"official" in the noun sense
1. official, functionary
a worker who holds or is invested with an office
2. official
someone who administers the rules of a game or sport
"the golfer asked for an official who could give him a ruling"
"official" in the adjective sense
1. official
having official authority or sanction
"official permission"
"an official representative"
2. official
of or relating to an office
"official privileges"
3. official
verified officially
"the election returns are now official"
4. official, prescribed
conforming to set usage, procedure, or discipline
"in prescribed order"
5. official
of a church) given official status as a national or state institution
Source: WordNet® (An amazing lexical database of English)
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