バウンドbaundo

1. noun, suru verb, intransitive verbbounce; bound
   球たまはバウンドして塀へいを越こえた。↗

   The ball bounced over the wall.

• Synonym弾むはずむNeutralA verb for something springing up; also used for spirits lifting or spending freely, so its range is wide. 「バウンド」 centers on a ball bouncing off the ground.
• Synonym跳ね返るはねかえるNeutralA verb for rebounding or splashing back; also used figuratively for repercussions, as in 「跳ね返ってくる」.
• SynonymはねるNeutralA verb for jumping or hopping; also covers splashing and a show coming to an end, so its uses are many.
• SynonymリバウンドNeutralA loanword for regaining weight after dieting and for a basketball rebound; it stresses bouncing back.
• SynonymはずみNeutralA noun for springiness, momentum, or a split-second impulse, as in 「何かの弾みで」.
• Related跳ね上がるはねあがるNeutralA verb for jumping up or prices soaring; it stresses upward movement, as in 「株価が跳ね上がる」.
• Related跳ね返りはねかえりNeutralA noun for rebounding and repercussions; it can also mean a rash person, so its uses are mixed.

Use 「バウンド」 for a ball bouncing off the ground, as in 「ワンバウンド」 or 「ボールがバウンドする」. For springing up say 「弾む」, for rebounding or splashing back 「跳ね返る」, for post-diet weight regain 「リバウンド」, and for momentum 「弾み」.

Usage comparisons are AI-assisted and cross-checked by multiple models; for study reference only

1. 弾はずむこと。跳ね返はねかえること。