As adjectives the difference between special and chief

is that special is distinguished by a unique or unusual quality while chief is primary; principal.

As nouns the difference between special and chief

is that special is a reduction in consumer cost (usually for a limited time) for items or services rendered while chief is (leader of group etc)A leader or head of a group of people, organisation, etc.

Excitement is a synonym of trepidation.

As nouns the difference between trepidation and excitement

is that trepidation is a fearful state; a state of hesitation or concern while excitement is the state of being excited (emotionally aroused).

Snitch is a related term of filch.

In lang=en terms the difference between snitch and filch

is that snitch is to inform on while filch is to steal, to illegally take possession of.

As verbs the difference between snitch and filch

is that snitch is to steal, quickly and quietly while filch is to steal, to illegally take possession of.

As a noun snitch

is a thief.

Precept is a related term of sway.

As nouns the difference between precept and sway

is that precept is a rule or principle, especially one governing personal conduct while sway is the act of swaying; a swaying motion; a swing or sweep of a weapon.

As verbs the difference between precept and sway

is that precept is (obsolete) to teach by precepts while sway is to move or swing from side to side; or backward and forward; to rock.

Lust is a related term of liking.

As nouns the difference between lust and liking

is that lust is pleasure, joy while liking is likeness.

Mainspring is a related term of purpose.

As nouns the difference between mainspring and purpose

is that mainspring is the principal spring of a clockwork mechanism, that drives it by uncoiling while purpose is an object to be reached; a target; an aim; a goal.

As a verb purpose is

have set as one's purpose; resolve to accomplish; intend; plan.

As nouns the difference between aegis and influence

is that aegis is a mythological shield associated with Zeus and Athena shown as a short cloak consisting of a goatskin. The aegis of Athena is usually shown with a border of snakes and with the head of Medusa in the center. The aegis is more an emblem of protection and power than an actual military shield while influence is the power to affect, control or manipulate something or someone; the ability to change the development of fluctuating things such as conduct, thoughts or decisions.

As a verb influence is

to affect by gentle action; to exert an influence upon; to modify, bias, or sway; to persuade or induce.

Declare is a related term of squawk.

As verbs the difference between declare and squawk

is that declare is while squawk is to make a squawking noise; to yell, scream, or call out shrilly.

As a noun squawk is

a shrill noise, especially made by a voice or bird; a yell, scream, or call.

Conduce is a synonym of tend.

As verbs the difference between conduce and tend

is that conduce is to contribute or lead to a specific result while tend is to kindle; ignite; set on fire; light; inflame; burn or tend can be (legal|old english law) to make a tender of; to offer or tender or tend can be (with to) to look after (eg an ill person).

As nouns the difference between condemnation and abuse

is that condemnation is the act of condemning or pronouncing to be wrong; censure; blame; disapprobation while abuse is improper treatment or usage; application to a wrong or bad purpose; an unjust, corrupt or wrongful practice or custom.

As a verb abuse is

to put to a wrong use; to misapply; to use improperly; to misuse; to use for a wrong purpose or end; to pervert; as, to abuse one's authority.