Each character in 各有千秋 contributes to its idiomatic meaning: 各 (gè) means 'each' or 'respective'; 有 (yǒu) means 'to have'; 千 (qiān) is the numeral 'thousand', used here figuratively to mean 'many' or 'countless'; 秋 (qiū) literally means 'autumn', but in this idiom it evokes classical poetic imagery of seasonal beauty and richness — together, 千秋 suggests 'profound, timeless merits'. So the phrase literally conveys 'each has its own thousand autumns', i.e., each possesses unique, abundant, and enduring strengths.

This idiom is commonly used when comparing two or more people, things, or approaches that differ significantly but are all admirable in their own way. It expresses respectful acknowledgment of diversity in excellence — not competition, but complementary value. You’ll hear it in discussions about art styles, teaching methods, regional cuisines, or personal talents. It carries a positive, balanced, and slightly literary tone, often appearing in spoken and written Chinese alike.