[ taws-uhp, tos- ]
/ ˈtɔsˌʌp, ˈtɒs- /


the tossing of a coin to decide something by its fall.
an even choice or chance: It's a tossup whether they'll come or not.

Origin of tossup

First recorded in 1740–50; noun use of verb phrase toss up Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020

Examples from the Web for tossup