社しゃ友ゆうしゃゆうMeanings1nouncolleague; company friendRefers to a friend or colleague from the same company or workplace. Slightly formal and not as common as 同僚.彼かれは私わたしの社しゃ友ゆうです。He is my colleague from the company.社しゃ友ゆうと昼ちゅう食しょくをとった。I had lunch with a company friend.