Festivity is a related term of carnival.

As a noun festivity

is (often|pluralized) a festival or similar celebration.

As a proper noun carnival is

the season just before the beginning of the has its mardi gras carnival.

As nouns the difference between trust and performance

is that trust is confidence in or reliance on some person or quality while performance is the act of performing; carrying into execution or action; execution; achievement; accomplishment; representation by action.

As a verb trust

is to place confidence in; to rely on, to confide, or repose faith, in.

As an adjective trust

is secure, safe.

Set is a related term of change.

As a numeral set

is seven.

As a noun change is

(lb) change.

Reinforcement is a related term of stay.

As nouns the difference between reinforcement and stay

is that reinforcement is (uncountable) the act, process, or state of reinforcing or being reinforced while stay is (nautical) a strong rope supporting a mast, and leading from the head of one mast down to some other, or other part of the vessel or stay can be a prop; a support.

As a verb stay is

(nautical) to incline forward, aft, or to one side by means of stays or stay can be to prop; support; sustain; hold up; steady.

As an adjective stay is

steep; ascending.

As an adverb stay is

steeply.

Meet is a related term of proficient.

As nouns the difference between meet and proficient

is that meet is a sports competition, especially for athletics or swimming while proficient is an expert.

As adjectives the difference between meet and proficient

is that meet is suitable; right; proper while proficient is good at; skilled; fluent; practiced, especially in relation to a task or skill.

As a verb meet

is (lb) of individuals: to make personal contact .

Authorisation is a related term of permit.

As a noun authorisation

is .

As a verb permit is

.

Psychoanalyst is a related term of headshrinker.

As nouns the difference between psychoanalyst and headshrinker

is that psychoanalyst is a practitioner of psychoanalysis while headshrinker is (humorous) psychiatrist.

Heedfully is a related term of vigorously.

As adverbs the difference between heedfully and vigorously

is that heedfully is in a heedful manner while vigorously is with intense energy, force or vigor.

Compressed is a related term of heavy.

As adjectives the difference between compressed and heavy

is that compressed is pressed tightly together while heavy is (of a physical object) having great weight or heavy can be having the heaves.

As verbs the difference between compressed and heavy

is that compressed is (compress) while heavy is to make heavier.

As an adverb heavy is

heavily.

As a noun heavy is

a villain or bad guy; the one responsible for evil or aggressive acts.

Debauched is a related term of perverse.

As adjectives the difference between debauched and perverse

is that debauched is indulging in or characterised by sensual pleasures to a degree perceived to be morally harmful; corrupted; immoral; self-indulgent while perverse is turned aside; hence, specifically, turned away from the (morally) right; willfully erring; wicked; perverted.

As a verb debauched

is (debauch).