noun | fʌn.dʒəˈbɪl.ə.ti
Fungibility is like the communism of money - it means that every unit of a currency is interchangeable and worth the same as any other unit. It's the reason why you don't care which specific dollar bill you get as change from the grocery store, as long as it spends the same.
Example
"Bitcoin is supposed to be fungible, but with all the chain analysis and KYC/AML regulations, it's starting to feel more like a surveillance coin. Monero, on the other hand, is the true freedom money - no one knows how much you have or where you spend it, just like cash."
"Fungibility is a double-edged sword - on one hand, it's great for privacy and freedom, but on the other hand, it makes it easier for criminals and terrorists to move money around undetected. It's like the atomic bomb of money - a powerful tool that can be used for good or evil."