Entry 1 sense Webster, 1913 lexical /(lĕks"ĭ*kal)/ · lex·ic·al · IPA /ˈlɛksɪkəl/ 01 a. Of or pertaining to a lexicon, to lexicography, or words; according or conforming to a lexicon. 1. Of or pertaining to a lexicon, to lexicography, or words; according or conforming to a lexicon.