Some people say that a half uncle is your step-dad or step-mum's brother. Since, an uncle is the brother of your parent, the brother of a setp-parent would be a step-uncle.
In fact, however, neither "Half Uncle" nor "Step Uncle" are frequently or widely used in the English language. The sibling of a step parent is generally not considered to be a relation to you.
If an aunt is the sister of your mother or father, a half aunt would be a half sister of your mother or father, i.e. only sharing one parent with them.
Your mother's half-brother is your uncle, or half-uncle if you want to be exceedingly precise.
NO
YES......If your Mother of Father has Half-Siblings (Half Brothers or Half Sisters) and those siblings, (your Half Aunt(s) or Half Uncle(s) ) have children, those children become your Half Cousin(s). Saying that someone is your 'Half Aunt' or 'Half Uncle' or 'Half Cousin' is the correct term, but it is not put into practice very often and people just refer to their 'Half Aunt' or 'Half Uncle' or 'Half Cousin' as simply; 'Aunt' or 'Uncle' or 'Cousin'
YES......If your Mother of Father has Half-Siblings (Half Brothers or Half Sisters) and those siblings, (your Half Aunt(s) or Half Uncle(s) ) have children, those children become your Half Cousin(s). Saying that someone is your 'Half Aunt' or 'Half Uncle' or 'Half Cousin' is the correct term, but it is not put into practice very often and people just refer to their 'Half Aunt' or 'Half Uncle' or 'Half Cousin' as simply; 'Aunt' or 'Uncle' or 'Cousin'
Since the cousin is from your half uncle's wife's side of the family the cousin would not be your cousin.
your uncle or even half uncle but it would be no different.
Uncle
Your grandfather's half brother is you great uncle. Some would insist on calling him your half-great uncle, but the English language has not had a need to get that specific and complex about such distant relationships.
he has 2 half brothers and a half sister
A Great half uncle.
Probably, you would correct him. It depends on why he does it, and how you feel about it. If they have a child of their own, he/she is your half-brother or half-sister, so you wouldn't be their uncle.
dont think so. Uncial = Uncle..? If so, then yes, I think. They were half brothers. Since Leafpool is his daughter, I guess that makes Scourge the half uncle~?