(1):
(n.) A state of impassioned emotion; transport; elevation of fancy; exaltation of soul; as, the poetry of enthusiasm.
(2):
(n.) Lively manifestation of joy or zeal.
(3):
(n.) Inspiration as if by a divine or superhuman power; ecstasy; hence, a conceit of divine possession and revelation, or of being directly subject to some divine impulse.
(4):
(n.) Enkindled and kindling fervor of soul; strong excitement of feeling on behalf of a cause or a subject; ardent and imaginative zeal or interest; as, he engaged in his profession with enthusiasm.