As a proper noun soldier

is a city in iowa.

As a noun navy is

a country's entire sea force, including ships and personnel.

As an adjective navy is

having the dark blue colour of navy blue.

As a proper noun soldier

is a city in iowa.

As an adjective naval is

(nautical) of or relating to a navy.

As verbs the difference between unit and numbers

is that unit is while numbers is (number).

As a noun numbers is

.

In obsolete terms the difference between sudden and certain

is that sudden is an unexpected occurrence; a surprise while certain is determined; resolved.

As an adverb sudden

is suddenly.

As a noun sudden

is an unexpected occurrence; a surprise.

As a determiner certain is

having been determined but unspecified. The quality of some particular subject or object which is known by the speaker to have been specifically singled out among similar entities of its class.

As verbs the difference between juxtapose and help

is that juxtapose is while help is to provide assistance to (someone or something).

As a noun help is

(uncountable) action given to provide assistance; aid.

As nouns the difference between boon and bonanza

is that boon is (obsolete) a prayer; petition or boon can be the woody portion of flax, separated from the fiber as refuse matter by retting, braking, and scutching while bonanza is in mining, a rich mine or vein of silver or gold.

As an adjective boon

is (obsolete) good; prosperous; as, "boon voyage".

As nouns the difference between survivors and surveyors

is that survivors is while surveyors is .

As verbs the difference between discover and unvail

is that discover is to remove the cover from; to uncover (a head, building etc.) while unvail is obsolete spelling of lang=en.

As a proper noun Discover

is Discover Card, a brand of credit card.

As nouns the difference between cutback and decrease

is that cutback is a reduction in an existing program of some sort while decrease is an amount by which a quantity is decreased.

As a verb decrease is

of a quantity, to become smaller.

As adjectives the difference between surcharges and extra

is that surcharges is while extra is beyond what is due, usual, expected, or necessary; extraneous; additional; supernumerary.

As an adverb extra is

(informal) to an extraordinary degree.

As a noun extra is

(cricket) a run scored without the ball having hit the striker's bat - a wide, bye, leg bye or no ball; in australia referred to as a sundry.