to give something to somebody and receive something in exchange

to start doing somebody else’s job, etc. while they do yours

I'll drive there and then we'll swop over on the way back.

to replace one person or thing with another

I think I'll swop this sweater for one in another colour.

I'm going to swop you over. Mike will go first and Jon will go second.

an act of exchanging one thing or person for another

a thing or person that has been exchanged for another

Most of my football stickers are swops.

LEARNit Dictionary