Cách sử dụng
The expression "in default of something" means that if something is not available or doesn't happen as planned, then a certain action must be taken instead. For example, if you have made an agreement with someone to pay a debt in monthly installments but fail to pay one month, they may send a letter saying that they will take legal action in default of payment. This means they will take legal action as there is no payment made for that month. The expression is often used in legal documents and formal settings.