Entry 2 senses · 2 variants Webster, 1913 Exon /ĕkˌ-sôn'/ · Ex·on · IPA /ˈɛksɑn/ n. n. 01 n. A native or inhabitant of Exeter, in England. 1. A native or inhabitant of Exeter, in England. 02 n. An officer of the Yeomen of the Guard; an Exempt. 1. An officer of the Yeomen of the Guard; an Exempt.[Eng.]