(broadly) a psychoactive drug that stimulates the nervous system, temporarily affecting mental or physical ability: a stimulant

finale (grand end of something)

antibiotics

sankyoku, a traditional Japanese ensemble consisting of three instruments: shakuhachi, shamisen, and koto (formerly kokyu, shamisen, and koto)

atmosphere of a song

free, unrestricted / effortless

freedom / effortlessness

hiddenness; invisibility; latency; potentiality

to be hidden; to be invisible; to be latent, to lurk

an extremely long period of time / (raising one's hands three times in cheer) raising ones hands / (raising one's hands in defeat) business troubles, bankruptcy