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"swap" is also used as a crossword clue. If that's what you saw, the answer is often interchange (11 letters).
Definitions
Exchange one thing for another.
Word origin
From the verb swap. First attested in 1620.
Used in a sentence
“In an effort to provide more permanent accommodations, employers may offer employees the opportunity either to swap jobs with a colleague or to transfer to a new position.”
“Chief watched these goings-on without pleasure, and waved them off in disgust when the smarmiest of the two suggested he might wish to swap that elk's tooth for this jug of fine rye whiskey.”
“The Shah wanted to swap oil for more arms.”
Source: Wiktionary, CC BY-SA 4.0
Used as a crossword answer1 curated clues
01“Make an exchange”4 letters
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