swap
verb
[ swɒp ]
• take part in an exchange of.
• "we swapped phone numbers"
swap
noun
• an act of exchanging one thing for another.
• "let's do a swap"
Origin:
Middle English (originally in the sense ‘throw forcibly’): probably imitative of a resounding blow. Current senses have arisen from an early use meaning ‘strike hands as a token of agreement’.
