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"Gratis" is an adjective which is often translated as "free", and "plural" is a noun which is often translated as "plural". Learn more about the difference between "gratis" and "plural" below.
gratis()
An adjective is a word that describes a noun (e.g., the big dog).
An adverb is a word that describes a verb, an adjective, or other adverbs (e.g., to run quickly, very tired).
a. for nothing
Puedes estar seguro de que yo gratis no trabajo.You can be sure I don't work for nothing.
el plural, plural()
A masculine noun is used with masculine articles and adjectives (e.g., el hombre guapo, el sol amarillo).
An adjective is a word that describes a noun (e.g., the big dog).
2. (diverse)
a. pluralistic
El racismo todavía existe en varias sociedades plurales.Racism still exists in many pluralistic societies.