(chemistry) a periodic table

(chemistry) chemical element

a person's nature or disposition / original characteristic of a thing; a property; a nature

period of time, cycle

to use / to employ / to make use of, to apply / to spend

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

explanation

to explain