Noun

• S: (n) plug-in, add-on (a software module that extends or enhances the capabilities of an existing application)
• direct hypernym / inherited hypernym / sister term
• S: (n) software, software program, computer software, software system, software package, package ((computer science) written programs or procedures or rules and associated documentation pertaining to the operation of a computer system and that are stored in read/write memory) "the market for software is expected to expand"
• S: (n) code, computer code ((computer science) the symbolic arrangement of data or instructions in a computer program or the set of such instructions)
• S: (n) coding system (a system of signals used to represent letters or numbers in transmitting messages)
• S: (n) writing (letters or symbols that are written or imprinted on a surface to represent the sounds or words of a language) "he turned the paper over so the writing wouldn't show"; "the doctor's writing was illegible"
• S: (n) written communication, written language, black and white (communication by means of written symbols (either printed or handwritten))
• S: (n) communication (something that is communicated by or to or between people or groups)
• S: (n) abstraction, abstract entity (a general concept formed by extracting common features from specific examples)
• S: (n) entity (that which is perceived or known or inferred to have its own distinct existence (living or nonliving))
• S: (n) addition, add-on, improver (a component that is added to something to improve it) "the addition of a bathroom was a major improvement"; "the addition of cinnamon improved the flavor"
• direct hyponym / full hyponym
• direct hypernym / inherited hypernym / sister term
• derivationally related form
• S: (n) accessory, appurtenance, supplement, add-on (a supplementary component that improves capability)
• direct hyponym / full hyponym
• direct hypernym / inherited hypernym / sister term
• derivationally related form