Odds and Tossup

Odds noun - A measure of how often an event will occur instead of another.

Tossup and odds are semantically related In some cases you can use "Tossup" instead a noun "Odds".

Tossup noun - An unpredictable phenomenon.

Odds and tossup are semantically related in fate topic. Sometimes you can use "Odds" instead a noun "Tossup", if it concerns topics such as feasibility, likelihood of something happening.