What is the meaning of official?

noun

• A worker who holds or is invested with an office.
  • synonyms: functionary
• Someone who administers the rules of a game or sport.
  • usage: "the golfer asked for an official who could give him a ruling"

adjective

• Having official authority or sanction.
  • usage: "official permission"; "an official representative"
• Of or relating to an office.
  • usage: "official privileges"
• Verified officially.
  • usage: "the election returns are now official"
• Conforming to set usage, procedure, or discipline.
  • usage: "in prescribed order"
  • synonyms: prescribed
• Of a church. ( given official status as a national or state institution).