principal

As a noun proverb

is a phrase expressing a basic truth which may be applied to common situations.

As a verb proverb

is to write or utter proverbs.

As an adjective principal is

principal, main.

Chieftain is a related term of principal.

As a noun chieftain

is a leader of a clan or tribe.

As an adjective principal is

principal, main.

As adjectives the difference between principal and preponderant

is that principal is primary; most important while preponderant is preponderating; outweighing; overbalancing.

As a noun principal

is the money originally invested or loaned, on which basis interest and returns are calculated.

As a noun can

is song.

As a verb can

is (lb).

As an adjective principal is

principal, main.

As adjectives the difference between highest and principal

is that highest is superlative of high while principal is primary; most important.

As an adverb highest

is superlative of high POS=adverb.

As a noun principal is

the money originally invested or loaned, on which basis interest and returns are calculated.

As adjectives the difference between primeval and principal

is that primeval is belonging to the first ages while principal is primary; most important.

As a noun principal is

the money originally invested or loaned, on which basis interest and returns are calculated.

Principal is a related term of paramount.

As adjectives the difference between principal and paramount

is that principal is principal, main while paramount is supreme; highest; chief.

Primitive is a related term of principal.

As adjectives the difference between primitive and principal

is that primitive is of or pertaining to the beginning or origin, or to early times; original; primordial; primeval; first while principal is principal, main.

As a noun primitive

is an original or primary word; a word not derived from another, as opposed to (derivative).

Captain is a related term of principal.

As a noun captain

is a chief or leader.

As a verb captain

is to act as captain.

As an adjective principal is

principal, main.

High is a synonym of principal.

As adjectives the difference between high and principal

is that high is elevated in position or status; above many things while principal is principal, main.

As a noun high

is (obsolete) thought; intention; determination; purpose or high can be a period of euphoria, from excitement or from an intake of drugs.

As an adverb high

is in or to an elevated position.

As a verb high

is (obsolete) to rise or high can be to hie; to hasten.