swap
1. [ verb ] exchange or give (something) in exchange for
Synonyms: switch trade swop
Related terms: exchange barter substitution
2. [ verb ] (computer science) move (a piece of a program) into memory, in computer science
Related terms: travel thrash
3. [ noun ] (business) an equal exchange
Synonyms: trade swop quid_pro_quo barter
Examples:

"we had no money so we hd to live by barter"

Related terms: exchange horse_trade trade barter
Similar spelling:   swop
  Swope
  swoop
  swipe
  sweep
  Swoope
  swob
  SWbW
  swab