How to say "loop" in Japanese

• ループCommon
  nounThe direct borrowing of 'loop', covering a ring-shaped band or a line that doubles back to its starting point; use it where English would simply say 'loop'.
• 輪わJLPT N3approx.Common
  nounThe native word for a ring or circle; it matches 'loop' only in the concrete sense of something round or hoop-shaped, not in abstract or process senses.
• 循環じゅんかんJLPT N2approx.Common
  noun, suru verb, intransitive verbReally a word for circulation, rotation, or cycling — something going round continuously or recurring as a cycle. Its 'loop' gloss covers only that cyclical sense, never a physical loop.
  血液けつえきは体内たいないを循環じゅんかんする。↗

  Blood circulates through the body.

Use 「ループ」 for a loop as a thing — a ring-shaped object or a path that returns to its start — 輪 for an ordinary ring or circle shape, and 循環 only when 'loop' means a circulating cycle.

Usage comparisons are AI-assisted and cross-checked by multiple models; for study reference only

• ループloop
• 輪わring
• 循環じゅんかんcirculation
• 輪っかわっかring
• 輪奈わなloop (of thread, string, etc.)
• 輪差わさloop
• のの字ののじloop
• 遊環ゆうかんloop (on a watch strap)
• 環状ネットワークかんじょうネットワークring network
• 環状網かんじょうもうring network
• 回路かいろcycle
• 乳ちちloop