time / hour / the hours or time when something happens

a chat, a small talk

have a chat

an elder / a scholar / a teacher or a professor / sensei (Japanese martial arts teacher) / sir, a polite form of address to teachers, doctors, etc.

a title used after the name of teachers, doctors, lawyers, or certain other professionals

(dialect, Hakata) teacher, professor

needed, necessary

need, necessity

timetable

an hour-long period