english
1
general::
adj., adv. VERBS be | divide sth, go, split sth We'll divide the profit fifty-fifty. We went fifty-fifty on the meal. ADV. about, roughly The chances of reaching the survivors in time are about fifty-fifty.
Oxford Collocations Dictionary
2
general::
see under GO HALVES.
American Heritage Idioms
3
general::
Phrase(s): fifty-fifty
even or equal. (See also go fifty-fifty (on something.) • The chances of success are about fifty-fifty. • Even at fifty-fifty, it’s probably worth it, you know.
McGrawhill's American Idioms And Phrasal Verbs