As an adjective linguistic

is linguistic.

As a noun discourse is

(uncountable|archaic) verbal exchange, conversation.

As a verb discourse is

to engage in discussion or conversation; to converse.

As nouns the difference between heights and levels

is that heights is plural of lang=en while levels is plural of lang=en.

As a verb levels is

third-person singular of level.

As nouns the difference between toilet and toilets

is that toilet is personal grooming; washing, dressing etc while toilets is plural of lang=en.

As a verb toilet

is to dress and groom oneself.

As nouns the difference between cabaret and vaudeville

is that cabaret is live entertainment held in a restaurant or nightclub while vaudeville is a style of multi-act theatrical entertainment which flourished in North America from the 1880s through the 1920s.

As adjectives the difference between contemporary and undefined

is that contemporary is from the same time period, coexistent in time while undefined is lacking a definition or value.

As a noun contemporary

is someone or something living at the same time, or of roughly the same age as another.

As nouns the difference between ocean and main

is that ocean is ocean while main is .

As nouns the difference between idea and overview

is that idea is an abstract archetype of a given thing, compared to which real-life examples are seen as imperfect approximations; pure essence, as opposed to actual examples while overview is a brief summary, as of a book or a presentation.

As a verb overview is

to engage in an overview; to provide a brief summary.

As verbs the difference between mainstreaming and stereotype

is that mainstreaming is while stereotype is .

As verbs the difference between programme and programing

is that programme is while programing is .

As a pronoun so

is this;.

As a verb past is

.