“Macabre” is a French-derived word which in its original language has the final “ruh” sound lightly pronounced. Those who know this are likely to scorn those who pronounce the word “muh-COB.” But this latter pronunciation is very popular and blessed by some American dictionaries, and those who prefer it sometimes view the French-derived pronunciation as pretentious. It’s up to you whether you want to risk being considered ignorant or snooty.
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