noun
Refers to people who share the same purpose, status, or activity; often used in a somewhat formal or literary context. Can carry a neutral or slightly negative nuance depending on context, similar to 'brethren' or 'lot'.
彼は同じ志を持つ輩と共に新しい事業を始めた。
He started a new venture together with comrades who share the same aspiration.
酒場には荒くれの輩が集まっていた。
Rough fellows were gathered at the tavern.
仲間 is the common, everyday word for 'companion' or 'mate'. 輩 is more literary and can imply a group defined by a shared characteristic, sometimes with a dismissive tone.
同士 emphasizes mutual relationship (e.g., 恋人同士 'lovers'). 輩 focuses on the individuals as members of a category.
Derived from classical Japanese ともがら, originally meaning 'companions' or 'fellows'. The kanji 輩 is used phonetically and semantically, as it also appears in words like 先輩 (senior) and 後輩 (junior), indicating a group or category of people.