multiple

As a noun mass

is march.

As an adjective multiple is

multiple.

As adjectives the difference between single and multiple

is that single is not accompanied by anything else; one in number while multiple is having more than one element, part, component, or function, particularly many.

As nouns the difference between single and multiple

is that single is a 45 RPM vinyl record with one song on side A and one on side B while multiple is a number that may be divided by another number with no remainder.

As a verb single

is to identify or select one member of a group from the others; generally used with out, either to single out or to single (something) out.

Complex is a synonym of multiple.

As adjectives the difference between complex and multiple

is that complex is made up of multiple parts; composite; not simple while multiple is multiple.

As a noun complex

is a problem.

As a verb complex

is (chemistry|intransitive) to form a complex with another substance.

Multitudinous is a related term of multiple.

As adjectives the difference between multitudinous and multiple

is that multitudinous is existing in great numbers; innumerable while multiple is multiple.

As an adjective multiple

is multiple.

As a noun demonstration is

demonstration (act of showing and explaining).

Multiple is a related term of variegated.

As adjectives the difference between multiple and variegated

is that multiple is multiple while variegated is streaked, spotted, or otherwise marked with a variety of color; very colorful.

As a verb variegated is

(variegate).

Involved is a related term of multiple.

As adjectives the difference between involved and multiple

is that involved is complicated while multiple is multiple.

As a verb involved

is (involve).

As adjectives the difference between multiple and labyrinthine

is that multiple is having more than one element, part, component, or function, particularly many while labyrinthine is physically resembling a labyrinth; with the qualities of a maze.

As a noun multiple

is a number that may be divided by another number with no remainder.

As adjectives the difference between multiple and double

is that multiple is having more than one element, part, component, or function, particularly many while double is made up of two matching or complementary elements.

As nouns the difference between multiple and double

is that multiple is a number that may be divided by another number with no remainder while double is twice the number, amount, size, etc.

As an adverb double is

twice over; twofold.

As a verb double is

to multiply by two.