The name matches the reality; to be worthy of the name.
名声或名义和实际相符。
汉·曹操《与王修书》君澡身浴德，流声本州，忠能成绩，为世美谈，名实相符，过人甚远。”
His achievements are truly worthy of his reputation as a top scientist.
Learn the next connected idiom: 名副其实 (míng fù qí shí) → 实事求是 (shí shì qiú shì)
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