As an adjective environmental

is pertaining to one's environment.

As a noun ambience is

.

As an adjective environmental

is pertaining to one's environment.

As a noun ambiences is

plural of ambience.

As nouns the difference between brain and bug

is that brain is the control center of the central nervous system of an animal located in the skull which is responsible for perception, cognition, attention, memory, emotion, and action while bug is god.

As a verb brain

is to dash out the brains of; to kill by smashing the skull.

Pesant is likely misspelled.

Pesant has no English definition.

As a noun servant is

one who is hired to perform regular household or other duties, and receives compensation. As opposed to a slave.

As a verb servant is

to subject.

As an adjective popular is

popular.

As a noun whale

is any of several species of large sea mammals of the order cetacea.

As a verb whale

is to hunt for whales.

As verbs the difference between conducted and performed

is that conducted is past tense of conduct while performed is past tense of perform.

As a noun flattery is

(uncountable) excessive praise or approval, which is often insincere and sometimes contrived to win favour.

As a verb attest is

to affirm to be correct, true, or genuine.

As adjectives the difference between colourful and colourless

is that colourful is while colourless is having little or no colour.