interjection, noun
Formal closing phrase used at the end of a letter, similar to 'Sincerely' or 'Respectfully yours'. Used as a set expression in written correspondence.
手紙の最後に「拝具」と書いて結んだ。
I closed the letter by writing 'Haigu' at the end.
ビジネスレターでは「拝具」のような結語が使われることがある。
In business letters, closing phrases like 'Haigu' are sometimes used.