稀[xī] 基本解释：
新英汉大词典：
- 稀[xī]
- 形容词- （事物出现得少） rare; scarce; uncommon:
When a thing is scarce, it is precious.物以稀为贵。
- （事物之间距离远; 空隙大） sparse; scattered:a vast, sparsely populated area;地广人稀
The moon is bright and the stars are few.月明星稀。
- （含水多; 稀薄） watery; thin:I'd like to have some liquid food.我想吃点稀的。
This gruel is too thin.粥太稀了。
- 名词- （姓氏） a surname:
Xi Xian稀贤
以上内容来源于：《新汉英大辞典》
例句与用法：
The stamp collector decided to get that rare stamp at all costs.
The wasteland of the north is scarcely populated.
He's devoted his whole life to the protection of the rare animals.
A black swan is rare.
Parliament has passed an Act forbidding the killing of rare animals.
A collector of rare insects will show us some of his latest discoveries.
He alighted on a rare medical herb.
He has a sparse beard.
稀的其他解释: