Alternative spelling of 私達 (“we; us”)

private; mine

Kyūjitai form of 函数 (“function”)

armorer; armourer

(obsolete) mailbox / (US, Brazil, obsolete) post office box; PO box

historic, historical / already-happened, past / former, old, traditional

historian

study of history

(Internet slang, especially anime and manga fandom) events or things from the past which one wants to whitewash/erase from history (due to it being embarrassing, poorly received, etc.); dark past

oral history