noun
opening greeting in a letter
Refers to set phrases like 拝啓 (haikei) or 謹啓 (kinkei) used at the beginning of formal Japanese letters. Often paired with a closing greeting (結語).
手紙の頭語には「拝啓」や「前略」などがある。
Opening greetings in letters include 'haikei' and 'zenryaku'.