了如指掌
liǎo rú zhǐ zhǎng
Complete understanding
Knowing something extremely well, as if it's right in front of you and easy to see. It conveys a deep and comprehensive understanding of facts, details, or a situation.
What does 了如指掌 (liǎo rú zhǐ zhǎng) mean?
了如指掌 (liǎo rú zhǐ zhǎng) means "complete understanding" in English. Word for word, it breaks down as "clear as pointing to one's palm."
Character by character
- 了 liǎo understand, clear
- 如 rú like, as if
- 指 zhǐ finger, point
- 掌 zhǎng palm of hand
When to use it
Use this expression to emphasize someone's thorough knowledge or mastery of a subject, person, or situation. It's often used to commend someone for their expertise or detailed awareness.
Example
陈教师教了我们班四年了，他对每一个同学的情况真是了如指掌啊！
Chén jiàoshī jiào le wǒmen bān sìnián le, tā duì měi yíge tóngxué de qíngkuàng zhēnshì liǎo rú zhǐ zhǎng a!
Teacher Chen has taught our class for four years, so he truly has a complete grasp of every student's situation!
Pro tip: The image of seeing something clearly on one's own palm highlights the ease and certainty of knowing, implying no ambiguity or hidden aspects.
Related idioms
恋恋不舍 · Unwilling to part or leave两全其美 · Win-win outcome乱七八糟 · Utter disorder
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