A chack or cheque, thocht tae hae come fae the Persian wird چك chek, is a gangable instrument instructin a financial institution tae pey a speceefic amoont o a speceefic currency fae a speceefic demaund accoont hauden in the makker/depositor's name wi that institution. Baith the makker an peyee micht be naitural fowk or legal entities.

File:Aulchq.jpg
An auld Scots Chack