Idiom ninety-nine times out of a hundred (definition of ninety from the cambridge advanced learner's dictionary & thesaurus © cambridge university press) Ninety is a platform for building and managing businesses, offering tools for meetings, scorecards, goals, and effective communication. Ninety helps you implement and leverage the entrepreneurial operating system® faster, easier, and more effectively with our eos®-specific platform.

Many style guides recommend using figures instead of words for numbers greater than ten. The meaning of ninety is a number equal to nine times 10. How to use ninety in a sentence.