了 - complete, finish

comprehension; consent; understanding; agreement

after the end (of something)

please be aware (that ...); please note (that ...); please understand (that ...)

end; close; conclusion; termination

completion (of a course)

acknowledgement; acknowledgment; understanding; approval; consent

expiration; termination

charm; fascination

finish; completion; the end

completion; conclusion

to finish; to complete

winning (of a hand); declaring a win; going mahjong; going out