tentativeswap
nounUK /ˈtɛntətɪv swɒp/
US /ˈtɛntətɪv swɑːp/
A tentative swap is a trade you try out first to see if it works.
We did a tentative swap of our toys for one day to see if we liked them.
OTHER MEANINGS
2. A first, careful attempt at trading something that may be changed later.
The tentative swap of seats was undone when the teacher changed the plan.
3. A temporary exchange in a computer system that can be reversed.
The program made a tentative swap of the two values before saving.
4. An early agreement to exchange things that is not final yet.
They signed a tentative swap of houses for the summer.