Jackson

The word “Jackson” means informal American slang for a twenty-dollar bill, from the portrait of President Andrew Jackson on it. In plain terms, slang for a US $20 bill.

“Jackson” is pronounced JAK-suhn (/ˈd͡ʒæksən/ in IPA).

Here is “Jackson” used in a sentence: “He slipped the valet a Jackson for parking the car.”

“Jackson” is a noun.

“Jackson” is a fairly common word in modern English.

The nickname comes from the portrait on the note. United States twenty-dollar bills feature President Andrew Jackson, the seventh president, on the front. Just as a hundred-dollar bill is nicknamed a 'Benjamin' for Benjamin Franklin, a twenty became a 'Jackson,' a casual American slang term for the denomination.

It is strictly informal slang. You would not see 'Jackson' on a receipt, in a bank, or in any official document, where the note is simply a twenty-dollar bill or a twenty. It belongs to casual, spoken American English, common in everyday talk about cash rather than in writing.

American slang labels many notes by their portraits or values. A one-dollar bill is a 'single,' a five is sometimes a 'Lincoln,' a ten a 'Hamilton,' and a hundred a 'Benjamin' or 'C-note.' A twenty is a 'Jackson.' Cash in general goes by 'bucks,' 'bread,' or 'dough.'