guru (n.)

• abecedarian
• angel
• authority
• boss
• chef
• chief
• docent
• doctor
• dominie
• don
• educationist
• educator
• elder
• employer
• fellow
• goodman
• guide
• husband
• instructor
• intellect
• intellectual
• liege
• lord
• maestro
• mahatma
• mandarin
• master
• mastermind
• mentor
• mullah
• oracle
• overlord
• padrone
• paterfamilias
• patriarch
• patron
• pedagogue
• philosopher
• preceptor
• professor
• pundit
• rabbi
• sage
• sahib
• saint
• sannyasi
• savant
• scholar
• schoolmaster
• schoolteacher
• seer
• seigneur
• seignior
• starets
• teacher
• thinker
• yogi