Correct

寰宇

/ huányǔ /
Strokes

Definition

the whole earth/the universe

Example

As a Noun

entire/whole world

1
Huán
寰宇
shuāng
无双
  

There is no equal in the world.

2
Xiǎng
享誉
huán
寰宇

be famous/known world-wide; enjoy high reputation in the whole world; enjoy global reputation