Potential answers for "Requiring rare knowledge"

⭐⭐⭐⭐ ARCANE
⭐⭐⭐⭐ ESOTERIC
⭐ POSTPAID
⭐ LEAF
⭐ APART
⭐ EXERTIVE
⭐ YTTRIA
⭐ NOHIT
⭐ OLOGY

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