noun, noun which may take the genitive case particle 'no'
under one's eyes; below one's eyes; before one's eyes
Refers to a scene or view spread out directly below or in front of one's eyes, often from a high vantage point. Used in descriptive and literary contexts.
山頂から眼下に広がる街並みを見渡した。
From the mountaintop, I looked out over the town spread below my eyes.
眼下の景色は息をのむほど美しかった。
The view below was breathtakingly beautiful.
Compound of 眼 (gan, 'eye') and 下 (ka, 'below'), literally 'below the eye'. The reading is on'yomi, and the word is used in formal or literary Japanese.