also: しゅっけい
interjection
Dear (name); salutation in formal letters
A respectful, formal opening used in letters, similar to 'Dear ...' in English. Often paired with 謹啓. Used in honorific contexts.
See also: 謹啓
粛啓、春暖の候、貴社ますますご清栄のこととお慶び申し上げます。
Dear Sir/Madam, I hope your company is thriving in this warm spring weather.
Both are formal letter openings. 謹啓 is slightly more respectful and often used in very formal correspondence, while 粛啓 is also respectful but may be seen as slightly less stiff.
Composed of 粛 (solemn, respectful) and 啓 (to open, to state). The combination conveys a respectful opening of a letter.