As nouns the difference between progress and voyage

is that progress is movement or advancement through a series of events, or points in time; development through time while voyage is a long journey, especially by ship.

As verbs the difference between progress and voyage

is that progress is to move, go, or proceed forward; to advance while voyage is to go on a long journey.

As verbs the difference between contain and check

is that contain is (lb) to hold inside while check is to inspect; to examine.

As a noun check is

(chess) a situation in which the king is directly threatened by an opposing piece or check can be (textiles|usually|pluralized) a pattern made up of a grid of squares of alternating colors; a checkered pattern.

As a noun commonality

is the common people; the commonalty.

As an adverb communally is

affecting, by, or on behalf of, a community or group of people.

As nouns the difference between niggle and needle

is that niggle is a minor complaint or problem while needle is a long, thin, sharp implement usually for piercing such as sewing, or knitting, acupuncture, tattooing, body piercing, medical injections etc.

As verbs the difference between niggle and needle

is that niggle is to trifle with; to deceive; to mock while needle is to pierce with a needle, especially for sewing or acupuncture.

As nouns the difference between elephant and elephants

is that elephant is elephant while elephants is .

As verbs the difference between improved and soared

is that improved is (improve) while soared is (soar).

As an adjective improved

is that has been made better; enhanced.

As verbs the difference between improved and increase

is that improved is (improve) while increase is (of a quantity) to become larger.

As an adjective improved

is that has been made better; enhanced.

As a noun increase is

an amount by which a quantity is increased.

As adverbs the difference between instantly and continuously

is that instantly is urgently; with insistence while continuously is without pause.

In transitive terms the difference between help and teach

is that help is to avoid; to prevent; to refrain from; to restrain (oneself). Usually used in nonassertive contexts with can while teach is to cause to learn or understand.

In intransitive terms the difference between help and teach

is that help is to provide assistance while teach is to pass on knowledge, especially as one's profession; to act as a teacher.

As a proper noun Teach is

nickname for a teacher.

As verbs the difference between posit and impose

is that posit is assume the existence of; to postulate while impose is .

As a noun posit

is something that is posited; a postulate.