Able to be confused; easy to mix up with something else or hard to understand clearly.
From confuse + -able (capable of being). The -able suffix derives from Old French, ultimately from Latin -abilis, indicating possibility or capability of an action.
Two confusable words that fool even native speakers: 'affect' vs. 'effect'—affect is usually a verb meaning to influence, while effect is usually a noun meaning result, but English lets you use both as either, which is why people confuse them constantly.
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