3 letter word that starts with X?

Answer 1

X ed-

-verb (used with object), x-ed or x'd  /ɛkst/ Show Spelled Pronunciation [ekst] Show IPA , x-ing or x'ing  /ˈɛksɪŋ/ Show Spelled Pronunciation [ek-sing] Show IPA . 1. to cross out or mark with or as if with an x (often fol. by out): to x out an error. 2. to indicate choice, as on a ballot or examination (often fol. by in): to x in the candidate of your choice.

Answer 2

xis is one.