As adverbs the difference between unlikely and possibly

is that unlikely is in an improbable manner while possibly is (modifying a clause or predicate).

As an adjective unlikely

is not likely; improbable; not to be reasonably expected.

As a noun unlikely

is something or somebody considered unlikely.

As nouns the difference between supervisor and supervision

is that supervisor is (management) a person with the official task of overseeing the work of a person or group while supervision is supervision.

As nouns the difference between meaning and payer

is that meaning is the symbolic value of something while payer is one who pays; specifically, the person by whom a bill or note has been, or should be, paid.

As a verb meaning

is present participle of lang=en.

As an adjective meaning

is having a (specified) intention.

As adjectives the difference between refreshing and breezy

is that refreshing is that refreshes someone; pleasantly fresh and different; granting vitality and energy while breezy is with a breeze blowing, with a lively wind, pleasantly windy.

As a noun refreshing

is the action of refresh; refreshment given or received.

As a verb refreshing

is .

In transitive terms the difference between sum and accumulate

is that sum is to give a summary of while accumulate is to heap up in a mass; to pile up; to collect or bring together; to amass.

As a noun sum

is a quantity obtained by addition or aggregation.

As an adjective accumulate is

collected; accumulated.

Harridan is a synonym of termagant.

As nouns the difference between termagant and harridan

is that termagant is a quarrelsome, scolding woman, especially one who is old and shrewish while harridan is a vicious and scolding woman, especially an older one.

As an adjective termagant

is quarrelsome and scolding or censorious; shrewish.

As a proper noun Termagant

is an imaginary deity with a violent temperament who featured in medieval mystery plays, represented as being worshiped by Muslims.

As nouns the difference between past and principle

is that past is the period of time that has already happened, in contrast to the present and the future while principle is a fundamental assumption.

As an adjective past

is having already happened; in the past; finished.

As an adverb past

is in a direction that passes.

As a preposition past

is beyond in place, quantity or time.

As a verb principle is

to equip with principles; to establish, or fix, in certain principles; to impress with any tenet or rule of conduct.

As an adjective reflective

is something which reflects, or redirects back to the source.

As a noun speculation is

speculation.

As adjectives the difference between business and registered

is that business is of, to, pertaining to or utilized for purposes of conducting trade, commerce, governance, advocacy or other professional purposes while registered is having had one's name added to an official list or entered into a register.

As a noun business

is a specific commercial enterprise or establishment.

As a verb registered is

past tense of register.

As nouns the difference between approval and response

is that approval is an expression granting permission; an indication of agreement with a proposal; an acknowledgement that a person, thing or event meets requirements while response is (senseid)an answer or reply, or something in the nature of an answer or reply.