the brother of one of your parents, or the man married to one of your aunts
My uncle took us fishing last weekend.
Sarah's uncle lives in Australia.
✦ From Latin 'avunculus' meaning 'mother's brother', passing through Old French 'oncle' into Middle English.
a polite title used by children or young people for a friendly older man who is not related to them
The neighbors' kids call the friendly postman "Uncle Mike."
During the holiday festival, the village children ran up to "Uncle" to get sweets.
not easy to understand, ambiguous, or confusing
The instructions were unclear, so I asked my teacher for help.
Because the map was unclear, the hikers took the wrong path.
✦ formed by adding the negative prefix un- to clear, first recorded in English in the early 17th century
not easy to see through or make out; indistinct or cloudy
Thick fog made the road ahead unclear to the driver.
The photo is unclear because the camera lens was dirty.
