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v. Simple past tense and past participle of swap.

"Its light and heat survive in only the flimsiest of things: the feathered seed heads of the reeds that engrave fine scratches onto the plate of the sky; the tiny contact calls swapped between parties of long-tailed tits as they move through the willow tops, living in the warmth of their own talk."

swapped    swapping    swaps    swopped   

interchange    change    exchange   

to swap off   

swapped    swapping    swopping    swopped    swops   

swapsies    total return swap    swap meet    credit default swap    swap out    swap in   

swop    flap    blow    stroke    exchange    barter    hastily    trade    quid pro quo    switch   

Bopp    Pop    atop    bop    chop    cop    crop    drop    flop    glop   

currency    equity    derivative    option    bond    volatility    contract    asset    coupon    mortgage