Entry 3 senses · 2 variants Webster, 1913 Astound /əs-tound'/ · As·tound · IPA /əˈstaʊnd/ a. v. t. 01 a. Stunned; astounded; astonished. 1. Stunned; astounded; astonished.[Archaic] “Thus Ellen, dizzy and astound. As sudden ruin yawned around.” — Sir W. Scott. 02 v. t. To stun; to stupefy. imp. & p. p. Astounded; p. pr. & vb. n. Astounding 1. To stun; to stupefy.[Obs.] “No puissant stroke his senses once astound.” — Fairfax. 2. To astonish; to strike with amazement; to confound with wonder, surprise, or fear. “These thoughts may startle well, but not astound The virtuous mind.” — Milton.