[, ] (; ) a written agreement in which a company selling sth promises to repair or replace it if there is a problem within a particular period of time保修单；担保书；保证书◆The television comes with a full two-year warranty.这台电视机有整两年的保修期。◆Is the car still under warranty?这辆汽车还在保修期内吗？SYNguarantee ➡warrantee , warrantor extended warranty