RE: Vocab-ability Prefix–298 (multi__ = many, much) – A More Powerful Vocabulary (earn UpVotes with “Vocab Practice” exercise)

Multiply
He had been multiplying, but it occurred to him he needed to resolve the exponents, first.
Multitude
A multitude of soldier rushed in to hold the line thereby preventing enemy forces from gaining entrance into the town.
Multifaceted
Joan was a multifaceted individual; she knew how to bargain both with Wall Street brokers and push-cart vendors.
Multilingual
There is a work vacancy at the embassy, but one very important requirement for the work is being multilingual and also being fluent.