noun
Refers to the distance around something, such as a tree trunk, waist, or circular object.
See also: 回り (まわり)
この木の周りは3メートルある。
This tree has a circumference of 3 meters.
ウエストの周り
Please measure your waist circumference.
noun
surroundings; vicinity; neighborhood
The area around a place or person; often used with この, その, etc. to mean 'around here/there'.
この周りにはコンビニがたくさんある。
There are many convenience stores around here.
彼は周りを気にせず話し続けた。
He kept talking without paying attention to his surroundings.
noun
people around one; surrounding circumstances
Refers to the people in one's immediate social or physical circle, or the general situation one is in.
周りの人に助けられて、ここまで来られた。
I've made it this far thanks to the people around me.
周りの状況をよく見て行動しなさい。
Act after carefully observing the surrounding circumstances.