周
circumference, circuit, lap
Readings
On'yomi
- シュウ
Kun'yomi
- まわ.り
Nanori
- あまね
- しゅ
- す
- ちか
- のり
- ひろ
- びび
- まこと
Meaning
周 centers on a closed path around something: a circumference, a circuit, or a lap. The idea is always a boundary or route that goes around and returns.
Most common words using 周
20 of 207- 周しゅうN1
counter for laps or circuits
- 周りまわりN4
circumference; girth
- 周辺しゅうへんN2
circumference; outskirts; environs; around; in the area of; in the vicinity of
- 周囲しゅういN3
surroundings; environs
- 周波数しゅうはすう
frequency (esp. of waveforms)
- 一周いっしゅうN1
one round; one circuit; one revolution; one lap; one turn
- 周回しゅうかい
going around; orbiting; circling
- 周期しゅうきN2
cycle; period
- 周知しゅうち
common knowledge; being well-known; making (something) well-known
- 周波しゅうは
cycle; wave; frequency
- 外周がいしゅう
outer circumference; perimeter
- 円周えんしゅうN2
circumference
- 周遊しゅうゆう
(circular) tour; round trip; excursion
- 周防すおう
Suō (former province located in the southeast of present-day Yamaguchi Prefecture)
- 高周波こうしゅうは
high frequency; HF
- 周到しゅうとう
careful; thorough; meticulous; scrupulous
- 周縁しゅうえん
fringe; rim; periphery; borders; outskirts
- 半周はんしゅう
semicircle; hemicycle; half globe
- 周航しゅうこう
circumnavigation; circle tour by ship
- 周年しゅうねんN1
whole year; entire year
Study
Etymology
周 originally depicted a border or enclosure around a field, representing a perimeter or circuit. The modern form combines 用 (an enclosure) with 口 (mouth or opening), suggesting a defined surrounding area.
Meaning mnemonic
The outer frame 用 is like a fence, and the inner 口 is the area inside. Picture a running track: the fence marks the circumference, and the inner field is where the lap is completed.
Reading mnemonic
For シュウ, imagine running a circuit and shouting 'Shoo!' as you complete each lap: 'Shoo!' -> シュウ, tying the sound to the circular motion.