uncle
noun /ˈʌŋkl/
  /ˈʌŋkl/
Idioms - the brother of your mother or father; the husband of your aunt
- Uncle Ian
 - I'm going to visit my uncle.
 - a maternal/paternal uncle (= related through the mother’s/father's side of the family)
 - I've just become an uncle (= because my brother/sister has had a baby).
 - uncle to somebody Joey was like an uncle to us.
 - He was the youngest son of Edward III and uncle to Richard II.
 - The celebrant of the Mass was Rev. Martin Doyle, uncle of the bride.
 
Extra ExamplesTopics Family and relationshipsa1- He looks so much like his late uncle.
 - The boss smiled at us all like a benevolent uncle.
 - the fortune left to her by her dead uncle
 - my favourite uncle
 
Oxford Collocations Dictionaryadjective- beloved
 - favourite/favorite
 - rich
 - …
 
 - used by children, with a first name, to address a man who is a close friend of their parentsTopics Family and relationshipsb2                                     
 - (Indian English, South-East Asian English) used as a polite way of addressing or referring to an older man
- The uncle who lives opposite my parents is always so warm and friendly.
 
/ˈʌŋkldʒi//ˈʌŋkldʒi/. 
Word OriginMiddle English: from Old French oncle, from late Latin aunculus, alteration of Latin avunculus ‘maternal uncle’, diminutive of avus ‘grandfather’.
Idioms 
Bob’s your uncle 
- (British English, informal) used to say how easy and quick it is to do a particular task
- Press here and Bob's your uncle! It's disappeared.