Money / cash.
The default informal word for money: *no tengo guita*, I’m broke. Alongside it *un mango* means a single peso, so *no tengo un mango* is "I don’t have a penny", and *luca* is a thousand.
Lunfardo. Probably from an old Spanish word for twine — the string that tied a purse.
Casual. In a bank or a contract you want *dinero* or *plata*.
Reading a definition isn't the same as saying it to someone. Lingo Kaiava is a voice tutor set to Argentine Spanish — it uses guita the way locals do, corrects you in the moment, and never "fixes" the way real people actually talk into textbook Argentine Spanish.
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