As an adjective intellectual

is belonging to, or performed by, the intellect; mental or cognitive; as, intellectual powers, activities, etc.

As a noun intellectual

is an intelligent, learned person, especially one who discourses about learned matters.

As a verb pursue is

to follow with harmful intent; to try to harm, to persecute, torment.

As a verb seek is

(lb) to try to find, to look for, to search.

As nouns the difference between capacity and extent

is that capacity is the ability to hold, receive or absorb while extent is a range of values or locations.

As adjectives the difference between capacity and extent

is that capacity is filling the allotted space while extent is extended.

As a verb cheat

is to violate rules in order to gain advantage from a situation.

As a noun cheat

is someone who cheats (informal: cheater).

As an initialism BSA is

Boy Scouts of America

As verbs the difference between guess and stimate

is that guess is to reach a partly (or totally) unqualified conclusion while stimate is .

As a noun guess

is a prediction about the outcome of something, typically made without factual evidence or support.

As nouns the difference between retribution and sanction

is that retribution is remuneration, reward while sanction is an approval, by an authority, generally one that makes something valid.

As a verb sanction is

to ratify; to make valid.

As adjectives the difference between spatial and topical

is that spatial is of or pertaining to space while topical is of current interest; contemporary.

As a noun topical is

a topical anaesthetic.

Pigen is likely misspelled.

Pigen has no English definition.

As a noun hummingbird

is any of various small American birds in the family Trochilidae that have the ability to hover.

As adjectives the difference between unconsolable and undefined

is that unconsolable is not consolable while undefined is lacking a definition or value.

As a verb demise

is .

As a noun distinction is

that which distinguishes; a single occurrence of a determining factor or feature, the fact of being divided; separation, discrimination.