WordNet sense 1 ((language) communication by word of mouth):

speech, oral communication, speech communication, spoken communication, spoken language, voice communication

WordNet sense 2 (the text of a popular song or musical-comedy number):

lyric, words

WordNet sense 3 (a system of words used to name things in a particular discipline):

nomenclature, terminology

WordNet sense 4 (a systematic means of communicating by the use of sounds or conventional symbols):

linguistic communication

WordNet sense 5 (the cognitive processes involved in producing and understanding linguistic communication):

linguistic process