A stream or river flowing into a larger river or into a lake; a tributary stream; a tributary.
Somebody who is wealthy.
Abundant; copious; plenteous.
Abounding in goods or riches; having a moderate level of material wealth.
The Upper East Side is an affluent neighborhood in New York City.
Used other than figuratively or idiomatically: see roll, in, it.
Having an abundance of money; rich, very prosperous.