Climb/klaɪm/ Definition 1 of 4Pro Tip 1/3Physical Activity Refers to literal upward movement, often requiring effort and physical strength. The climber climbed the cliff with great skill. Pro Tip 2/3Using Limbs Usually involves hands and feet, and may imply some skill or ability. Kids love climbing trees in the backyard. Pro Tip 3/3Not Always Upward Can imply moving in any direction across a surface, like a wall or a slope. We watched spiders climb across the ceiling.