quality assuranceEnglishOxford Dictionary of Englishquality assurance /ˈkwɒlɪti əʃɔːr(ə)n(t)s , ˈkwɒlɪti əʃʊər(ə)n(t)s/ ▸ noun [mass noun] the maintenance of a desired level of quality in a service or product, especially by means of attention to every stage of the process of delivery or production.