跳跃 (tiàoyuè) is a more literary and vivid verb for 'to leap, to bound' — it suggests a vigorous, often purposeful springing motion, and can be used figuratively (e.g., thoughts leaping between ideas). It's less common in everyday speech than 跳 (tiào), which is the general, neutral word for any kind of jump or hop. 蹦 (bèng) emphasizes a short, bouncy hop, often playful.