周囲 refers to surroundings (people or environment) or physical circumference.
MEANING 1 - SURROUNDINGS:
- 周囲の人 (people around [someone])
- 周囲の環境 (surrounding environment)
- 周囲に気を配る (to be mindful of one's surroundings)
- 周囲の目 (others' eyes, public scrutiny)
MEANING 2 - CIRCUMFERENCE:
- 周囲○○メートル (circumference of XX meters)
- 腹周り / ウエスト周囲 (waist circumference)
SIMILAR WORDS:
- 周囲: surroundings (physical or social)
- 周り: around, vicinity (more casual)
- 近所: neighborhood (residential area)
- 環境: environment (broader concept)