1spar 
/ˈspɑɚ/ verb
spars; sparred; spar·ring /ˈspɑɚ/ verb [no obj] 1 : to box with someone as a form of training or practice
▪ He's been sparring with his trainer. 2 : to argue with someone in a friendly way
▪ They sparred playfully over whose team was better. — see also sparring partner
▪ He's been sparring with his trainer.
▪ They sparred playfully over whose team was better. — see also sparring partner
