Meaning of the word "cash cow" in English

What does "cash cow" mean in English? Explore the meaning, pronunciation, and specific usage of this word with Lingoland.

cash cow

US /kæʃ kaʊ/
UK /kæʃ kaʊ/
"cash cow" picture

Noun

1.

a product or service that generates a large amount of money for a company, often with little effort or investment once established

Example:
Their flagship software has been a real cash cow for years.
The old product line might not be innovative, but it's still a reliable cash cow.
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