如鱼得水 rúyúdéshuǐ like a fish back in water Origin Definitions Defs Strokes Stroke Words Sentences Sents 如 rú preposition to be like to be like; to be similar to; as if鱼 魚 yú noun fish fish; generic term for aquatic cold-blooded vertebrates with gills and fins得 dé verb to get to obtain; to receive; to gain水 shuǐ noun water water; a liquid, juice, or lotion