bubbler vs bubble

bubbler and bubble both are nouns.

Word	Noun	Adjective	Verb	Adverb
bubbler	Yes	No	No	No
bubble	Yes	No	Yes	No

bubbler (noun)	bubble (noun)
a public fountain to provide a jet of drinking water	a dome-shaped covering made of transparent glass or plastic
any of various devices in which air or some other gas is bubbled through a liquid	an impracticable and illusory idea
	a speculative scheme that depends on unstable factors that the planner cannot control
	a hollow globule of gas (e.g., air or carbon dioxide)

bubbler (verb)	bubble (verb)
	expel gas from the stomach
	form, produce, or emit bubbles
	cause to form bubbles
	rise in bubbles or as if in bubbles
	flow in an irregular current with a bubbling noise