(mathematics, logic) A unary operation on logical values that changes true to false, and false to true.

plural of notability

A short note thanking someone who has recently provided the writer with hospitality.

Very little.

For free. / For no reason, wastefully, or pointlessly

(law) A warning endorsed on a court order, notifying the recipient that he or she is liable to committal to prison for breach of the order.

A small piece of paper with an adhesive strip on one side.

(idiomatic, US) To repeatedly fail in one's gambles or efforts.

(biology) The space in the tentorium where the brainstem passes.

(finance) A nominal amount of a financial instrument that is used to calculate payments made on that instrument, especially for instruments that do not have a well-defined face value or par value.