How to say "joint" in Japanese

• 節ふしJLPT N3approx.Common
  nounCovers 'joint' as a knuckle or node: the joints of a finger or toe, or the joints of bamboo and other plants. Not used for mechanical connections.
• 関節かんせつCommon
  nounThe word for a joint of the body in the anatomical sense — the knee, shoulder, or elbow. Use this when 'joint' refers to where bones meet.
  気温きおんが下さがると関節かんせつが痛いたむんだ。↗

  My joints ache when it gets cold.
• ジョイントCommon
  noun, suru verbThe loanword, used for a joint as a connecting part: pipe, cable, or furniture joints. It does not refer to joints of the body.
• 継ぎ目つぎめJLPT N1approx.Common
  nounRefers to the place where two things are joined: the seam of a garment or the joint between two boards. It is the joining point itself, not a body part.
  いすの継ぎ目つぎめはぐらぐらしていた。↗

  The joints of the chair were loose.
• 中継ぎなかつぎCommon
  noun, suru verbMeans joining or relaying something partway through — an intermediate connection — rather than a joint as a body part or fitting. For most senses of 'joint' this is not the word you want.

Use 関節 for joints of the body, 節 for knuckles and nodes like bamboo, 「ジョイント」 for mechanical connecting parts, 「継ぎ目」 for seams and joining points, and 「中継ぎ」 mainly for intermediate joining or relaying.

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

• 節ふしjoint
• 関節かんせつjoint
• ジョイントjoint
• 継ぎ目つぎめjoint
• 中継ぎなかつぎjoining
• 付け根つけねroot
• 共立きょうりつjoint
• 接続せつぞくconnection
• 合わせ目あわせめjoint
• つなぎ目つなぎめjoint
• 目地めじjoint
• 節理せつりjoint
• 骨っ節ほねっぷしjoint (between bones)
• 骨節ほねぶしjoint (between bones)
• つがい目つがいめjoint
• 継手つぎてcoupler
• 併催へいさいcombining a pair of events
• 接ぎ目はぎめseam
• 合接ごうせつconjunction
• 連帯れんたいjoint
• 合同ごうどうcombined
• 蝶番ちょうつがいjoint (esp. an anatomical joint)
• 節点せってんjoint (e.g. in a framework)
• つがい(anatomical) joint