clas·si·fied (klăs′ə-fīd′) adj. 1. Arranged in classes or categories. 2. Available to authorized persons only, as for reasons of national security: a classified ... .
top up vb (tr, adverb) 1. to raise the level of (a liquid, powder, etc) in (a container), usually bringing it to the brim of the container: top up the sugar in those bowls. 2 ... .