The difference between King and Regent

When used as nouns, king means a male monarch, whereas regent means a ruler.

King is also verb with the meaning: to crown king, to make (a person) king.

Regent is also adjective with the meaning: ruling.

check bellow for the other definitions of King and Regent

King as a noun:

A male monarch; a man who heads a monarchy. If it's an absolute monarchy, then he is the supreme ruler of his nation.

Examples:

"Henry VIII was the king of England from 1509 to 1547."
King as a noun:

A powerful or majorly influential person.

Examples:

"Howard Stern styled himself as the "king of all media"."
King as a noun:

Something that has a preeminent position.

Examples:

"In times of financial panic, cash is king."
King as a noun (chess):

A component of certain games. The principal chess piece, that players seek to threaten with unavoidable capture to result in a victory by checkmate. It is often the tallest piece, with a symbolic crown with a cross at the top. A playing card with the letter "K" and the image of a king on it, the thirteenth card in a given suit. A checker (a piece of checkers/draughts) that reached the farthest row forward, thus becoming crowned (either by turning it upside-down, or by stacking another checker on it) and gaining more freedom of movement.
King as a noun (UK, slang):

A king skin.

Examples:

"Oi mate, have you got kings?"
King as a noun:

A male dragonfly; a drake.
King as a noun:

A king-sized bed.

King as a verb:

To crown king, to make (a person) king.
King as a verb:

To rule over as king.
King as a verb:

To perform the duties of a king.
King as a verb:

To assume or pretend preeminence (over); to lord it over.
King as a verb:

To promote a piece of draughts/checkers that has traversed the board to the opposite side, that piece subsequently being permitted to move backwards as well as forwards.
King as a verb:

To dress and perform as a drag king.

Regent as a noun (now, _, rare):

A ruler.
Regent as a noun:

One who rules in place of the monarch, especially because the monarch is too young, absent, or disabled.
Regent as a noun (now, _, chiefly, _, historical):

A member of a municipal or civic body of governors, especially in certain European cities.
Regent as a noun (Scotland, North America):

A member of governing board of a college or university; also a governor of the Smithsonian Institute in Washington DC.
Regent as a noun (Indonesia):

The chief executive of a regency

Regent as an adjective:

Ruling; governing; regnant.
Regent as an adjective:

Exercising vicarious authority.

Examples:

"rfquotek Milton"