Student or Learner
I am not an English instructor and am struggling with the proper use of the following -esoteric, esoterica, esotericism. Would I be correct in using "esoteric" exclusively as an adjective and the other two as nouns? (In addition, esoterica and esotericism appear underlined in red as I type them here - why?)
Welcome to the forum, Donnie.
Yes, esoteric is an adjective and the other two are nouns.
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Your spellcheck probably underlined them because they are rarely used and therefore not in its database.