glub

As a noun glub

is the sound of underwater bubbles, or of water bubbling (often used repetitively).

As an adjective undefined is

lacking a definition or value.

As a proper noun bird

is .

As a noun glub is

the sound of underwater bubbles, or of water bubbling (often used repetitively).

As nouns the difference between birds and glub

is that birds is plural of lang=en while glub is the sound of underwater bubbles, or of water bubbling (often used repetitively).

As nouns the difference between glue and glub

is that glue is a hard gelatin made by boiling bones and hides, used in solution as an adhesive; or any sticky adhesive substance while glub is the sound of underwater bubbles, or of water bubbling (often used repetitively).

As a verb glue

is to join or attach something using glue.

As a noun glub

is the sound of underwater bubbles, or of water bubbling (often used repetitively).

As a verb blub is

to cry, whine or blubber.

As nouns the difference between flub and glub

is that flub is an error; a mistake in the performance of an action while glub is the sound of underwater bubbles, or of water bubbling (often used repetitively).

As a verb flub

is to goof, fumble, or err in the performance of an action.

As nouns the difference between glub and glob

is that glub is the sound of underwater bubbles, or of water bubbling (often used repetitively) while glob is a round, shapeless or amorphous lump, as of a semisolid substance.

As a verb glob is

to stick in globs or lumps.

As nouns the difference between glug and glub

is that glug is the sound made when a liquid is poured out of a jug or bottle while glub is the sound of underwater bubbles, or of water bubbling (often used repetitively).

As a verb glug

is to quickly swallow liquid.

As nouns the difference between glub and glum

is that glub is the sound of underwater bubbles, or of water bubbling (often used repetitively) while glum is light.

As nouns the difference between glub and slub

is that glub is the sound of underwater bubbles, or of water bubbling (often used repetitively) while slub is a small thickened portion or knot found on linen yarn, caused by defects.

As a verb slub is

to draw and twist fibers in order to prepare them for spinning.