関与: taking part in / 干与: being concerned with

関与: take part in / 干与: be concerned with

巻頭: opening page of book; beginning of an essay; prefatory / 敢闘: fighting bravely / 完投: going the whole distance; pitching a whole game / 官等: official rank / 竿頭: top of a pole

関東: Kanto / 間島

Kyūjitai form of 労働: labor; labour

to be employed; to work

employment

a person beyond the age of retirement who continues to work

Alternative spelling of 働き詞: (archaic, grammar) any word that declines or conjugates; (archaic, grammar) more specifically, a verb

collaboration