As adjectives the difference between quarrelsome and querulous

is that quarrelsome is argumentative; belligerent; contentious; given to quarreling while querulous is often complaining; suggesting a complaint in expression; fretful, whining.

As an adjective equivalent is

equivalent.

As a noun equivalent is

equivalent.

As verbs the difference between enquire and acquire

is that enquire is to make an enquiry while acquire is to get.

As adjectives the difference between permanent and contract

is that permanent is without end, eternal while contract is contracted; affianced; betrothed.

As nouns the difference between permanent and contract

is that permanent is a chemical hair treatment imparting or removing curliness, whose effects typically last for a period of weeks; a perm while contract is an agreement between two or more parties, to perform a specific job or work order, often temporary or of fixed duration and usually governed by a written agreement.

As verbs the difference between permanent and contract

is that permanent is to perm (the hair) while contract is to draw together or nearer; to shorten, narrow, or lessen.

As adjectives the difference between enthralled and engrossed

is that enthralled is extremely happy or excited while engrossed is preoccupied with something to the exclusion of everything else.

As verbs the difference between enthralled and engrossed

is that enthralled is past tense of enthrall while engrossed is past tense of engross.

As nouns the difference between gossip and communication

is that gossip is someone who likes to talk about someone else’s private or personal business while communication is the act or fact of communicating anything; transmission.

As a verb gossip

is to talk about someone else's private or personal business, especially in a way that spreads the information.

As nouns the difference between willpower and focus

is that willpower is the unwavering strength of will to carry out one’s wishes while focus is a point at which reflected or refracted rays of light converge.

As a verb focus is

to cause (rays of light, etc) to converge at a single point.

As nouns the difference between endorsement and commendation

is that endorsement is the act or quality of endorsing while commendation is the act of commending; praise; favorable representation in words; recommendation.

As adjectives the difference between superannuated and retired

is that superannuated is obsolete, antiquated while retired is secluded from society (of a lifestyle, activity etc.); private, quiet.

As verbs the difference between superannuated and retired

is that superannuated is past tense of superannuate while retired is past tense of retire.

As nouns the difference between something and somethings

is that something is an object whose nature is yet to be defined while somethings is plural of lang=en.

As a pronoun something

is an uncertain or unspecified thing; one thing.

As an adjective something

is having a characteristic that the speaker cannot specify.

As an adverb something

is somewhat; to a degree.

As a verb something

is applied to an action whose name is forgotten by, unknown or unimportant to the user, e.g. from words of a song.