Meaning of GUARANTEE in English

GUARANTEE

■ noun

1》 a formal assurance that certain conditions will be fulfilled, especially that restitution will be made if a product is not of a specified quality.

2》 something that ensures a particular outcome.

3》 variant spelling of guaranty .

4》 less common term for guarantor .

■ verb ( ~s , ~ing , ~d )

1》 provide a ~: the company ~s to refund your money.

↘provide a ~ for (a product).

↘provide financial security for; underwrite.

2》 promise with certainty.

Origin

C17: perh. from Sp. garante , corresp. to Fr. garant (see warrant ), influenced by Fr. garantie 'guaranty'.

Concise Oxford English vocab.      Сжатый оксфордский словарь английского языка.