Editor's Note: APYs listed in this article are up-to-date as of the time of publication. They may fluctuate (up or down) as the Fed rate changes. CNBC Select will update as changes are made public.

A suffix is a letter or group of letters that goes on the end of a word and changes the word's meaning. Some suffixes have specific uses. Narrator: I've told you, fur doesn't tan even when you're in ...