As an adjective now

is present; current.

As an adverb now

is at the present time.

As a conjunction now

is since something is true : because of the fact that something happened.

As an interjection now

is indicates a signal to begin.

As a noun now

is the present time.

As an acronym NOW

is national Organization for Women.

As a proper noun Changsha is

a city in south-central China, the capital of Hunan province.

As a noun part

is party (political group).

As a proper noun changsha is

a city in south-central china, the capital of hunan province.

As a proper noun changsha is

a city in south-central china, the capital of hunan province.

As proper nouns the difference between province and jiangxi

is that province is (british) northern ireland while jiangxi is a province in southern china.

As a noun province

is a subdivision of government usually one step below the national level; (canada) one of ten of canada's federated entities, recognized by the constitution and having a separate representative of the sovereign (compare territory).

As a noun china

is (uncountable) the root of a climbing plant, smilax china l, once believed to have important medicinal properties or china can be (cockney rhyming slang|countable) mate (ie, friend).

As a proper noun jiangxi is

a province in southern china.

As nouns the difference between protein and quinoprotein

is that protein is protein while quinoprotein is (protein) any of a class of proteins that have quinones as cofactors.

As nouns the difference between quinone and quinoprotein

is that quinone is any of a class of aromatic compounds having two carbonyl functional groups in the same six-membered ring while quinoprotein is any of a class of proteins that have quinones as cofactors.

As nouns the difference between cofactor and quinoprotein

is that cofactor is a contributing factor while quinoprotein is (protein) any of a class of proteins that have quinones as cofactors.

As a verb converge

is of two or more entities, to approach each other; to get closer and closer.

As a noun converger is

one who converges.

As nouns the difference between volume and oligospermia

is that volume is a unit of three-dimensional measure of space that comprises a length, a width and a height it is measured in units of cubic centimeters in metric, cubic inches or cubic feet in english measurement while oligospermia is (medicine) low volume of semen.