crew / krewe are similar-sounding terms with different meanings (referred to as homophones). To better understand the differences, see below for definitions, pronunciation guides, and example sentences using each term. 👇
crew: (noun) the men and women who man a vehicle (ship, aircraft, etc.). (noun) the team of men manning a racing shell. (verb) serve as a crew member on.
krewe: NA
crew: k·r·UW
krewe: NA
(Examples are Wikipedia snippets under the CC ShareAlike 3.0 license. Definitions drawn from WordNet.)