meanwhile

As a preposition amidst

is in the midst or middle of; surrounded or encompassed by; among.

As a noun meanwhile is

the time between two events.

As an adverb meanwhile is

during the time (that something is happening).

As nouns the difference between meanwhile and now

is that meanwhile is the time between two events while now is new moon.

As an adverb meanwhile

is during the time (that something is happening).

As a noun meanwhile

is the time between two events.

As an adverb meanwhile

is during the time (that something is happening).

As an adjective undefined is

lacking a definition or value.

As adverbs the difference between though and meanwhile

is that though is (lb) despite that; however while meanwhile is during the time (that something is happening).

As a conjunction though

is despite the fact that; although.

As a noun meanwhile is

the time between two events.

As nouns the difference between despite and meanwhile

is that despite is (obsolete) disdain, contemptuous feelings, hatred while meanwhile is the time between two events.

As a preposition despite

is in spite of, notwithstanding.

As a verb despite

is (obsolete) to vex; to annoy; to offend contemptuously.

As an adverb meanwhile is

during the time (that something is happening).