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full stop; period
end
終止符はピリオドとも呼ぶ。
A full stop is also called a period.
ついに長い争いに終止符が打たれた。
A long dispute finally came to an end.
文の末尾に終止符を打ち忘れて提出してしまった。
I submitted the paper forgetting to put a period at the end of the sentence.