Arc is a related term of curvature.

As an acronym arc

is (pathology) aids-related complex.

As a noun curvature is

the shape of something curved.

Sudden is a related term of broken.

As an adjective sudden

is happening quickly and with little or no warning.

As an adverb sudden

is (poetic) suddenly.

As a noun sudden

is (obsolete) an unexpected occurrence; a surprise.

As a proper noun broken is

(derogatory|slang) torres strait creole.

In intransitive terms the difference between bid and exclaim

is that bid is to make an attempt while exclaim is to cry out suddenly, from some strong emotion.

In obsolete terms the difference between bid and exclaim

is that bid is to proclaim (a bede, prayer); to pray while exclaim is exclamation; outcry, clamor.

As verbs the difference between bid and exclaim

is that bid is to issue a command; to tell while exclaim is to cry out suddenly, from some strong emotion.

As nouns the difference between bid and exclaim

is that bid is an offer at an auction, or to carry out a piece of work while exclaim is exclamation; outcry, clamor.

As an initialism BID

is Bis in die: twice a day, two times per day.

Poignancy is a related term of asperity.

As nouns the difference between poignancy and asperity

is that poignancy is the quality of being poignant while asperity is roughness as of stone or weather.

Appreciate is a related term of devour.

As verbs the difference between appreciate and devour

is that appreciate is to be grateful or thankful for while devour is to eat quickly, greedily, hungrily, or ravenously.

Natural is a related term of indispensable.

As adjectives the difference between natural and indispensable

is that natural is that exists and evolved within the confines of an ecosystem while indispensable is (ecclesiastical|obsolete) not admitting ecclesiastical dispensation; not subject to release or exemption; that cannot be allowed by bending the canonical rules.

As nouns the difference between natural and indispensable

is that natural is while indispensable is a thing that is not dispensable; a necessity.

Fierce is a related term of rampant.

As adjectives the difference between fierce and rampant

is that fierce is extremely violent, severe, ferocious or savage while rampant is (originally) rearing on both hind legs with the forelegs extended.

Dispose is a related term of govern.

As verbs the difference between dispose and govern

is that dispose is while govern is to make and administer the public policy and affairs of; to exercise sovereign authority in.

As an adjective dispose

is organized, placed in a certain fashion, arranged.

Plug is a related term of spin.

As nouns the difference between plug and spin

is that plug is (electricity) a pronged connecting device which fits into a mating socket while spin is spin.

As a verb plug

is to stop with a plug; to make tight by stopping a hole.

Levity is a related term of emptiness.

As a noun levity

is lightness of manner or speech, frivolity.

As a proper noun emptiness is

(astronomy) a chinese constellation near aquarius and equuleus, one of the 28 lunar mansions and part of the black turtle.