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"Bello" is an adjective which is often translated as "beautiful", and "qué bonito" is a phrase which is often translated as "how pretty". Learn more about the difference between "bello" and "qué bonito" below.
An adjective is a word that describes a noun (e.g., the big dog).
A phrase is a group of words commonly used together (e.g., once upon a time).
1. (general)