“One circuit” in Japanese
Short answer
One circuit in Japanese is “一周” (isshuu). Full meaning: one round, one circuit, one revolution, one lap, one turn.
Other ways to say “One circuit” in Japanese
一巡
ichijun one round, one tour, one circuit, one patrol
一都一道二府四十三県
ittoichidounifuyonjuusanken one metropolis (Tokyo), one "circuit" (Hokkaido), two urban prefectures (Osaka and Kyoto) and 43 prefectures proper, prefectures of Japan
Looking for the other direction? Search any Japanese word in the Nihoner lexicon, or practise what you have learned in the learning games.