throwaway290 parent
uncle/aunt is wildcard relation and means little. Actually in Russian for example it is the same word you use to describe a random person whom you may not even have any relation to
There's a lot of languages where aunt/uncle is just a polite word that children can use to refer to older adults who are not their parents (in some languages there is an upper age limit, where it becomes polite to refer to these as grandma/grandpa).
And some languages where all the different varieties of father's brother's wife have their own distinguishing names, but then there's also a generic term which means 'older person of one gender who usually comes to the house on $HOLIDAY'.