Nephew vs. Uncle

A son of one's brother or sister or of the brother or sister of one's spouse.

The brother of one's mother or father.

A son of one's sibling, brother-in-law, or sister-in-law; either a son of one's brother (fraternal nephew) or a son of one's sister (sororal nephew).

The husband of a sibling of one's mother or father.

A son of one's cousin or cousin-in-law

Used as a form of address for an older man, especially by children.

(archaic) A son of one's child.

A kindly counselor.

A grandson or grandchild, or remoter lineal descendant.

(Slang) A pawnbroker.

A cousin.

Uncle Uncle Sam.

The son of a brother or a sister, or of a brother-in-law or sister-in-law.

The brother or brother-in-law of one’s parent.

A son of your brother or sister

The male cousin of one’s parent.

(affectionate) Used as a fictive kinship title for a close male friend of one's parent or parents.

(euphemistic) Used as a title for the male companion to one's (usually unmarried) parent.

(figuratively) A source of advice, encouragement, or help.

A pawnbroker.

An affectionate term for a man of an older generation than oneself, especially a friend of one's parents, by means of fictive kin.

An older African-American male.

Any middle-aged or elderly man older than the speaker and/or listener.

A cry used to indicate surrender.

To address somebody by the term uncle.

To act like, or as, an uncle.

The brother of one's father or mother; also applied to an aunt's husband; - the correlative of aunt in sex, and of nephew and niece in relationship.

A pawnbroker.

An eldery man; - used chiefly as a kindly or familiar appellation, esp. (Southern U. S.) for a worthy old negro; as, "Uncle Remus."

The brother of your father or mother; the husband of your aunt

A source of help and advice and encouragement;