Covariate is a related term of covary.

In statistics terms the difference between covary and covariate

is that covary is to vary together with another variable, particularly in a way that may be predictive while covariate is a variable that is possibly predictive of the outcome under study.

As a verb covary

is to vary together with another variable, particularly in a way that may be predictive.

As a noun covariate is

a variable that is possibly predictive of the outcome under study.

In lang=en terms the difference between sharp and sharped

is that sharp is to raise the pitch of a note half a step making a natural note a sharp while sharped is past tense of sharp.

As an adverb sharp

is to a point or edge; piercingly; eagerly; sharply.

As a noun sharp

is the symbol ♯, placed after the name of a note in the key signature or before a note on the staff to indicate that the note is to be played a semitone higher.

As a proper noun Sharp

is {{surname}.

As nouns the difference between swab and swabbing

is that swab is (medicine) a small piece of soft, absorbent material, such as gauze, used to clean wounds, apply medicine, or take samples of body fluids often attached to a stick or wire to aid access while swabbing is the act of one who swabs.

As verbs the difference between swab and swabbing

is that swab is to use a swab on something, or clean something with a swab while swabbing is .

As nouns the difference between slug and slinch

is that slug is any of many terrestrial pulmonate gastropod mollusks, having no (or only rudimentary) shell while slinch is an English unit of mass equal to 12 slugs (386.088 pounds-mass), that accelerates by 1 inch per second squared (1 in/s²) when a force of one pound-force (lbf) is exerted on it.

As a verb slug

is to drink quickly; to gulp.

As nouns the difference between pound and slinch

is that pound is short for pound-force, a unit of force/weight or pound can be a place for the detention of stray or wandering animals or pound can be a hard blow while slinch is (physics|informal) an english unit of mass equal to 12 slugs (386088 pounds-mass), that accelerates by 1 inch per second squared (1 in/s²) when a force of one pound-force (lbf) is exerted on it.

As a verb pound

is to confine in, or as in, a pound; to impound or pound can be (label) to strike hard, usually repeatedly.

As a noun cost

is manner; way; means; available course; contrivance or cost can be amount of money, time, etc that is required or used or cost can be (obsolete) a rib; a side.

As a verb cost

is to incur a charge; to require payment of a price.

As an adverb costlessly is

without cost.

Costlessly is a derived term of costless.

Costlessly is a related term of costless.

As an adjective costless

is having no cost.

As an adverb costlessly is

without cost.

Costly is an antonym of costless.

As adjectives the difference between costly and costless

is that costly is of high cost; expensive while costless is having no cost.

As a noun altitude

is the absolute height of a location, usually measured from sea level.

As an adjective altitudinal is

of or in relation to altitude.

Altitudinally is a derived term of altitudinal.

As an adjective altitudinal is

of or in relation to altitude.