n. 25B6; noun
the excitement of seeing a leopard in the wild : THRILL, pleasure, delight, joy; informal kick, buzz; N. Amer. informal charge.
excitement in her eyes : EXHILARATION, elation, animation, enthusiasm, eagerness, anticipation, feverishness; informal pep, vim, zing.
(SEXUAL) AROUSAL, passion, stimulation, titillation.