As a Verb or Adjective: 1. Relating to the words or vocabulary of a language. English = lexical Note: 1. The signer in the video is giving an Auslan explanation of the English term LEXICAL. There appears to be no commonly used Auslan sign for LEXICAL (but some signers represent this visually using depicting signs, once they have established the topic). If you know a sign for LEXICAL used by you or other Auslan users (deaf people or interpreters) please go to "Report missing sign" and supply details. Thank you.