Thousand Yen Bill
Thousand Yen Note
You know what 千円 is (1000 yen). So if you add a bill to that you get a thousand yen bill. That's just the little rectangular piece of money that is worth 1000 yen.
This is a jukugo word, which usually means on'yomi readings from the kanji. If you know the readings of your kanji you'll know how to read this as well.
to need a 1000 yen bill
there is a 1000 yen bill
to not have enough 1000 yen bills
We don't have enough thousand yen bills for change.
I bought three lottery tickets with a thousand yen bill.
This crane game doesn't accept thousand yen bills.