expression, ichidan verb
stand shoulder-to-shoulder; walk side by side
Literal physical sense: people standing or walking with shoulders aligned, often implying equality or companionship.
彼らは肩を並べて歩いていた。
They were walking shoulder to shoulder.
Figurative use: to be equal in ability, status, or achievement; often used in competitive or comparative contexts.
彼の実力はプロと肩を並べるほどだ。
His skill is on a par with that of a professional.