An example of to cancel is someone telling their grocery delivery they no longer want their services.
Today's decline in stock price canceled out yesterday's gain.
Two opposing forces that canceled out.
To cancel an order or a ticket reservation.
Origin of cancel
- Middle English cancellen from Old French canceller from Latin cancellāre to cross out from cancellus lattice diminutive of cancer lattice
From American Heritage Dictionary of the English Language, 5th Edition