/ ˈfaʊntən; NAmE ˈfaʊntn/ noun
1.
a structure from which water is sent up into the air by a pump , used to decorate parks and gardens / yards
—see also drinking fountain
2.
a strong flow of liquid or of another substance that is forced into the air :
The amplifier exploded in a fountain of sparks.
3.
a rich source or supply of sth :
Tourism is a fountain of wealth for the city.
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WORD ORIGIN
Middle English (originally meaning a natural spring of water): from Old French fontaine , from late Latin fontana , feminine of Latin fontanus , adjective from fons , font- a spring.