The difference between Strange and Unknown

When used as nouns, strange means vagina, whereas unknown means a variable (usually x, y or z) whose value is to be found.

When used as adjectives, strange means not normal, whereas unknown means not known.

Strange is also verb with the meaning: to alienate.

check bellow for the other definitions of Strange and Unknown

Strange as an adjective:

Not normal; odd, unusual, surprising, out of the ordinary.

Examples:

"He thought it strange that his girlfriend wore shorts in the winter."
Strange as an adjective:

Unfamiliar, not yet part of one's experience.

Examples:

"I moved to a strange town when I was ten."
Strange as an adjective (physics):

Having the quantum mechanical property of strangeness.
Strange as an adjective (obsolete):

Belonging to another country; foreign.
Strange as an adjective (obsolete):

Reserved; distant in deportment.
Strange as an adjective (obsolete):

Backward; slow.
Strange as an adjective (obsolete):

Not familiar; unaccustomed; inexperienced.

Strange as a verb (obsolete, transitive):

To alienate; to estrange.
Strange as a verb (obsolete, intransitive):

To be estranged or alienated.
Strange as a verb (obsolete, intransitive):

To wonder; to be astonished (at something).

Unknown as an adjective (sometimes, _, postpositive):

Not known; unidentified; not well known.

Unknown as a noun (algebra):

A variable (usually x, y or z) whose value is to be found.
Unknown as a noun:

Any thing, place, or situation about which nothing is known; an unknown fact or piece of information.
Unknown as a noun:

A person of no identity; a nonentity