to react chemically / to respond, to react / be responsive, be sensitive

chain reaction (series of events) / chain reaction (type of nuclear reaction)

an overreaction

interpreter (especially a court interpreter, especially of Dutch or Chinese during the Edo period)

Hannō (a city in Saitama Prefecture, Japan)

Used other than figuratively or idiomatically: see 通常, 運転. / (transport) normal operation / (figuratively, of a person) business as usual; same old same old

to rise, to wake up / to rise, to stand up

to rise; to get up; to stand up / to start; to begin; to cause; to bring about / origin; cause; beginning

occasion / side / edge / verge / dangerous / adventurous / incident / time / when

moment prior to something