N3 - 完了かんりょう
completion, conclusion
N2 - 終了しゅうりょう
end, close, termination
N1 - 修了しゅうりょう
completion (of a course)
N1 - 了りょう
finish, completion, understanding
N1 - 了解りょうかい
comprehension, consent, understanding, roger (on the radio)
N1 - 了承りょうしょう
acknowledgement, understanding (e.g. please be understanding of the mess during our renovation)