S: (n) substance (the real physical matter of which a person or thing consists) "DNA is the substance of our genes"
S: (n) substrate, substratum (a surface on which an organism grows or is attached) "the gardener talked about the proper substrate for acid-loving plants"
S: (n) surface (the extended two-dimensional outer boundary of a three-dimensional object) "they skimmed over the surface of the water"; "a brush small enough to clean every dental surface"; "the sun has no distinct surface"
S: (n) stratum (one of several parallel layers of material arranged one on top of another (such as a layer of tissue or cells in an organism or a layer of sedimentary rock))
S: (n) substrate, substratum (an indigenous language that contributes features to the language of an invading people who impose their language on the indigenous population) "the Celtic languages of Britain are a substrate for English"
S: (n) indigenous language (a language that originated in a specified place and was not brought to that place from elsewhere)
S: (n) language, linguistic communication (a systematic means of communicating by the use of sounds or conventional symbols) "he taught foreign languages"; "the language introduced is standard throughout the text"; "the speed with which a program can be executed depends on the language in which it is written"
S: (n) communication (something that is communicated by or to or between people or groups)