choo

As a proper noun foo

is (dated|fandom slang|jocular) a mock deity of early science fiction fandom; a fannish ghod.

As a noun choo is

(onomatopoeia) the sound of a locomotive whistle.

As an interjection aooga

is .

As a noun choo is

(onomatopoeia) the sound of a locomotive whistle.

As nouns the difference between choo and meow

is that choo is (onomatopoeia) the sound of a locomotive whistle while meow is the cry of a cat.

As an interjection meow is

the cry of a cat.

As a verb meow is

of a cat, to make its cry.

As a noun choo

is (onomatopoeia) the sound of a locomotive whistle.

As a pronoun moo is

we.

As nouns the difference between choo and chug

is that choo is the sound of a locomotive whistle while chug is a dull, fairly quick explosive or percussive sound, as if made by a labouring engine.

As a verb chug is

to make dull explosive sounds.

As a noun choo

is (onomatopoeia) the sound of a locomotive whistle.

As a proper noun broom is

.

As a noun choo

is (onomatopoeia) the sound of a locomotive whistle.

As an interjection vroom is

the sound of an engine revving up.

As a verb vroom is

(informal) to move with great speed; to zoom.

As nouns the difference between choo and beep

is that choo is the sound of a locomotive whistle while beep is the sound produced by the horn of a car, or any similar sound.

As a verb beep is

to sound (something that makes a beep).

As a noun choo is

(onomatopoeia) the sound of a locomotive whistle.

As nouns the difference between cold and choo

is that cold is a condition of low temperature while choo is (onomatopoeia) the sound of a locomotive whistle.

As an adjective cold

is (label) having a low temperature.

As an adverb cold

is while at low temperature.