1.
fifty-fifty; even; toss-up
An equal split or balance between two sides, outcomes, or possibilities. Used to describe situations where neither side has an advantage.
An expression using 分, a traditional unit meaning one-tenth. Five-tenths plus five-tenths equals a whole, conveying the idea of a perfectly even split. Very commonly used in everyday conversation.
Common collocations
Usage
Can be used as a noun (五分五分だ) or as a modifier (五分五分の). Often used when discussing the outcome of competitions, elections, medical procedures, or any situation with uncertain results.