As adjectives the difference between preliminary and prerequisite

is that preliminary is in preparation for the main matter; initial, introductory, preparatory while prerequisite is required as a prior condition of something else; necessary or indispensable.

As nouns the difference between preliminary and prerequisite

is that preliminary is a preparation for a main matter; an introduction while prerequisite is something that must be gained in order to gain something else.

As nouns the difference between grams and ounce

is that grams is plural of lang=en while ounce is an avoirdupois ounce, weighing 1/16 of an avoirdupois pound, or 28.3495 grams.

As an adjective prerequisite is

required as a prior condition of something else; necessary or indispensable.

As a noun prerequisite is

something that must be gained in order to gain something else.

As verbs the difference between reinstate and regain

is that reinstate is to restore somebody to a former position or rank while regain is to get back; to recover possession of.

As nouns the difference between washers and mashers

is that washers is while mashers is .

As nouns the difference between bivanes and bilanes

is that bivanes is while bilanes is .

As nouns the difference between epistome and epitome

is that epistome is (zoology) a mouth-covering lobe or ridge in bryozoans and phoronids while epitome is (label) (embodiment or encapsulation of).

As verbs the difference between inchant and incant

is that inchant is obsolete form of lang=en while incant is to state solemnly, to chant.

As adjectives the difference between salmonlike and salonlike

is that salmonlike is resembling salmon (the fish or its meat) or some aspect of it while salonlike is resembling or characteristic of a salon.

As nouns the difference between gammas and gnammas

is that gammas is while gnammas is .