僚友|りょうゆうryouyuu[0]heiban (flat)

1. nouncolleague; workmate; comrade; coworker

• Synonym同僚どうりょうNeutralThe everyday word for a coworker, usually someone of similar standing at the same workplace; 「僚友」 is more literary and carries a note of camaraderie.
• Synonym同士どうしNeutralFellow or companion; mostly seen as the suffix 「〜同士」, as in 「友達同士」.
• Synonym同輩どうはいWrittenWritten word for a person of equal standing — a peer; unlike 「僚友」, not limited to people you work with.
• Related朋輩ほうばいWrittenWritten, old-fashioned term for fellows under the same teacher or colleagues at the same workplace.
• Related社友しゃゆうWrittenWritten word for companions at the same company; can also refer to a company's informal members.
• Related同業者どうぎょうしゃNeutralPeople in the same trade or line of business; they need not work together, unlike the colleagues 「僚友」 describes.
• Related同役どうやくWrittenWritten word for someone who holds the same post or plays the same role.
• Related儕輩さいはいFormalFormal and very rare: companions or peers, with a classical Sino-Japanese flavor.
• Antonym敵てきNeutralAn enemy or rival — the adversary, the opposite of the fellowship 「僚友」 suggests.

For an ordinary coworker, say 「同僚」. Use 「僚友」 in writing when you want a note of camaraderie for someone working alongside you in the same team or department. For people in the same trade, use 「同業者」; for an opponent, 「敵」.

Usage comparisons are AI-assisted and cross-checked by multiple models; for study reference only

1. 同おなじ職場しょくばや仕事しごとで一緒いっしょに働はたらく人ひと。