As nouns the difference between thread and vein

is that thread is thread (computing: unit of execution) while vein is .

In lang=en terms the difference between humiliate and surrogate

is that humiliate is to injure a person's dignity and self-respect while surrogate is to replace or substitute something with something else; appoint a successor.

As verbs the difference between humiliate and surrogate

is that humiliate is to injure a person's dignity and self-respect while surrogate is to replace or substitute something with something else; appoint a successor.

As a noun surrogate is

a substitute (usually of a person, position or role).

As an adjective surrogate is

of, concerning, relating to or acting as a substitute.

As verbs the difference between abjure and adhere

is that abjure is while adhere is .

As an adjective determined

is decided; resolute, possessing much determination.

As a verb determined

is past tense of determine.

As a noun determinates is

plural of lang=en.

As nouns the difference between indolence and comfortable

is that indolence is habitual laziness or sloth while comfortable is (us) a stuffed or quilted coverlet for a bed; a comforter.

As an adjective comfortable is

(lb) comforting, providing comfort; consolatory.

As verbs the difference between provoke and facilitate

is that provoke is to cause someone to become annoyed or angry while facilitate is to make easy or easier.

As nouns the difference between tigers and spaceships

is that tigers is while spaceships is .

As verbs the difference between purchase and expend

is that purchase is to pursue and obtain; to acquire by seeking; to gain, obtain, or acquire while expend is (label) to consume, exhaust (some resource).

As a noun purchase

is (obsolete) the act or process of seeking and obtaining something (eg property, etc).

As nouns the difference between pearlite and bainite

is that pearlite is a two-phased lamellar structure composed of alternating layers of alpha ferrite and cementite that occurs in some steels and cast irons, having a pearlescent appearance while bainite is a microstructure of steel consisting of needle-like particles of cementite embedded in a ferrite matrix.

As nouns the difference between agility and celerity

is that agility is (uncountable) the quality of being agile; the power of moving the limbs quickly and easily; nimbleness; activity; quickness of motion; as, strength and agility of body while celerity is (in literary usage) speed.