Entry 2 senses · 2 variants Webster, 1913 Climber /klīm'-ẽr/ · Climb·er · IPA /ˈklaɪmɚ/ n. v. i. 01 n. One who, or that which, climbs 1. One who, or that which, climbs(Bot.) 02 v. i. To climb; to mount with effort; to clamber. 1. To climb; to mount with effort; to clamber.[Obs.]