debt

debt /ˈdɛt/ noun
plural debts
debt
/ˈdɛt/
noun
plural debts
Britannica Dictionary definition of DEBT
1 
[count] : an amount of money that you owe to a person, bank, company, etc.
— see also national debt
2 
[noncount] : the state of owing money to someone or something
3 
[count] : the fact that you have been influenced or helped by someone or something — usually singular

debt to society

— used in phrases like pay your debt to society to refer to being punished for committing a crime

in someone's debt

◊ If you are in someone's debt, you are very thankful for something that someone has done for you.

owe a debt of gratitude/thanks to

: to have a good reason to be very grateful to (someone)