As adjectives the difference between aggressive and fierce

is that aggressive is tending or disposed to aggress; characterized by aggression; making assaults; unjustly attacking while fierce is extremely violent, severe, ferocious or savage.

As adjectives the difference between smooth and seamless

is that smooth is having a texture that lacks friction. Not rough while seamless is having no seams.

As an adverb smooth

is smoothly.

As a noun smooth

is something that is smooth, or that goes smoothly and easily.

As a verb smooth

is to make smooth or even.

As nouns the difference between spectrophotometer and reflectometer

is that spectrophotometer is an instrument used to measure the intensity of electromagnetic radiation at different wavelengths while reflectometer is an instrument used to measure the reflectance of a surface.

As nouns the difference between elastomers and rubber

is that elastomers is while rubber is (uncountable) pliable material derived from the sap of the rubber tree; a hydrocarbon polymer of isoprene or rubber can be (sports) a series of an odd number of games or matches of which a majority must be won (thus precluding a tie), especially a match consisting of the best of a series of three games in bridge or whist.

As a verb rubber is

to eavesdrop on a telephone call.

As adjectives the difference between insouciant and concerned

is that insouciant is carefree, nonchalant, indifferent; casually unconcerned while concerned is showing concern.

As a verb concerned is

past tense of concern.

As nouns the difference between service and waiter

is that service is service (eg in a restaurant) or service can be service, set while waiter is a male or sometimes female attendant who or similar.

As a letter k

is the eleventh letter of the.

As a symbol k

is symbol for potassium.

As an initialism dhtml is

dynamic html.

As nouns the difference between travesty and wrong

is that travesty is an absurd or grotesque misrepresentation while wrong is something that is immoral or not good.

As verbs the difference between travesty and wrong

is that travesty is to make a travesty of; to parody while wrong is to treat unjustly; to injure or harm.

As an adjective wrong is

incorrect or untrue.

As an adverb wrong is

(informal) in a way that isn't right; done incorrectly; wrongly.

As nouns the difference between consequences and common

is that consequences is while common is mutual good, shared by more than one.

As an adjective common is

mutual; shared by more than one.

As a verb common is

(obsolete) to communicate (something).

As nouns the difference between egg and math

is that egg is (zoology|countable) an approximately spherical or ellipsoidal body produced by birds, snakes, insects and other animals, housing the embryo during its development while math is a mowing; what is gathered from mowing or math can be (uncountable|north america) or math can be (hinduism|jainism).

As a verb egg

is to throw eggs at or egg can be to encourage, incite.