Definition of "rebound"

"I get it. Girl caught him on the rebound when he was vulnerable."

2014 April 4, Dan Shive, El Goonish Shive (webcomic), Comic for Friday, Apr 4, 2014

What if she was a rebound after all and he didn't feel the same way for her anymore?

2008, Craig Ainsworth, Proceed with Caution: Life's a Journey, page 96

Nika was dealt a terrible blow in finding she was a rebound and that Steve was still madly in love with his ex and that their love affair was sparked out of retaliation[.]

2009, Kenny Attaway, Nuthouse Love, page 154

Sure, he was a rebound, but he was a respectable rebound. Then, the rebound broke up with me.

2010, Joan Moran, Sixty, Sex, & Tango: Confessions of a Beatnik Boomer, page 43

The inevitable Baggies onslaught followed as substitute Simon Cox saw his strike excellently parried by keeper Bunn, with Cox heading the rebound down into the ground and agonisingly over the bar.

2010 December 28, Kevin Darling, “West Brom 1 - 3 Blackburn”, in BBC‎

Bodies which are absolutely hard, or so soft as to be void of elasticity, will not rebound from one another.

1704, I[saac] N[ewton], “(please specify |book=1 to 3)”, in Opticks: Or, A Treatise of the Reflexions, Refractions, Inflexions and Colours of Light. […], London: […] Sam[uel] Smith, and Benj[amin] Walford, printers to the Royal Society, […]

Martin Kelly fired in a dangerous cross and the Hearts defender looked on in horror as the ball rebounded off him and into the net.

2012 August 23, Alasdair Lamont, “Hearts 0-1 Liverpool”, in BBC Sport‎

each cave and echoing rock rebounds

a. 1714, Alexander Pope, Autumn

Silenus sung; the vales his voice rebound, / And carry to the skies the sacred sound.

1697, Virgil, “Pastoral 6”, in John Dryden, transl., The Works of Virgil: Containing His Pastorals, Georgics, and Æneis. […], London: […] Jacob Tonson, […]

By the mid-19605, the top small forwards in the game were Rick Barry and Iohn Havlicek, both of whom excelled as defenders and passers, rebounded well, and provided their respective teams with exceptional scoring.

2013, Robert W. Cohen, Pro Basketball's All-time All-stars: Across the Eras, page xxi

I knew for sure if Griffin blocked shots and rebounded the basketball my Ravens would become champions.

2021, Ronald Lee Fleming, Rise of the Ravens, page 2021