鹤立鸡群
Meaning
Someone or something that stands out brilliantly from the ordinary crowd.
In a sentence
Her essay was 鹤立鸡群 among the submissions.
Usage note
Complimentary, but can sound a little sharp about everyone else.
Where you see it in Brain Challenge
This idiom appears in the picture-idiom levels as a picture or number clue. When the clue shows numbers, the digits usually become the first characters of each half of the idiom — that is why so many chengyu start with 一, 三, 五, 七, 九 or 十.