Trade punches

SPAR

Boxers might do this in practice to improve technique without full force. Think of a short word for light, controlled fighting.

"Trade punches" hints at a back-and-forth exchange of blows, which is exactly what happens in sparring—a practice fight where boxers or martial artists take turns hitting each other. The word "trade" reinforces the idea of a mutual, controlled exchange rather than an all-out brawl. "Spar" fits perfectly as a short, punchy answer that captures both the action and the sporty context.