scalablePronunciation: /ˈskeɪləb(ə)l/ (also scaleable)Definition of scalable adjective 1able to be scaled or climbed. 2able to be changed in size or scale:scalable fonts (of a computing process) able to be used or produced in a range of capabilities:it is scalable across a range of systems 3 technical able to be measured or graded according to a scale. Derivatives scalabilityPronunciation: /-ˈbɪlɪti/ noun scalable in other Oxford dictionaries Definition of scalable in the US English dictionary