Chinese words with 循 character meaning (HSK)

循环

XUN2, HUAN2
to cycle, to circulate, circle, loop

循序渐进

XUN2, XU4, JIAN4, JIN4
in sequence, step by step (idiom), to make steady progress incrementally

遵循

ZUN1, XUN2
to follow, to abide by, to comply with, compliance