The difference between Alcoholic and Tun

When used as nouns, alcoholic means a person addicted to alcohol, whereas tun means a large cask.

Alcoholic is also adjective with the meaning: of or pertaining to alcohol.

Tun is also verb with the meaning: to put into tuns, or casks.

check bellow for the other definitions of Alcoholic and Tun

Alcoholic as an adjective:

Of or pertaining to alcohol.
Alcoholic as an adjective:

Having more than a trace amount of alcohol in its contents.

Examples:

"He ordered an alcoholic beverage."

"The oysters were sour, and excessively alcoholic."
Alcoholic as an adjective:

Of, pertaining to, or affected by alcoholism.

Tun as a noun:

A large cask; an oblong vessel bulging in the middle, like a pipe or puncheon, and girt with hoops; a wine cask.
Tun as a noun (brewing):

A fermenting vat.
Tun as a noun:

An old English measure of capacity for liquids, containing 252 wine gallons; equal to two pipes.
Tun as a noun:

A weight of 2,240 pounds.
Tun as a noun:

An indefinite large quantity.
Tun as a noun (archaic, humorous, or, derogatory):

A drunkard.
Tun as a noun (zoology):

Any shell belonging to and allied genera; called also tun-shell.

Tun as a noun:

A part of the ancient Maya Long Count Calendar system which corresponds to 18 winal cycles or 360 days.