cachou / cashew 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. 👇
cachou: (noun) a scented lozenge used to sweeten the breath (e.g. to conceal the odor of tobacco).
cashew: (noun) tropical American evergreen tree bearing kidney-shaped nuts that are edible only when roasted. (noun) kidney-shaped nut edible only when roasted.
cachou: NA
cashew: k·AE·sh·UW
(Examples are Wikipedia snippets under the CC ShareAlike 3.0 license. Definitions drawn from WordNet.)