一石二鸟

yī shí èr niǎo · literally “one stone, two birds”

Meaning

To achieve two goals with a single action — the Chinese equivalent of "kill two birds with one stone".

In a sentence

Walking to work is 一石二鸟: exercise and no traffic.

Usage note

Neutral and common in planning contexts.

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.

Play a picture-idiom level → · All idioms