How to say "tie-up" in Japanese

• 提携ていけいJLPT N1approx.Common
  noun, suru verb, transitive verb, intransitive verbCovers the business sense of 'tie-up': a cooperative arrangement, partnership, or joint business between companies or organizations. This is the word you want when 'tie-up' refers to a business deal rather than a stoppage.
  うちの会社かいしゃはあの合弁ごうべん会社かいしゃと提携ていけいしている。↗

  We are affiliated with the new joint venture company.
• 停滞ていたいJLPT N1approx.Common
  noun, suru verb, intransitive verbHere 'tie-up' means a standstill or congestion — traffic brought to a halt, or activity stagnating and not progressing. The core image is things stopping or slowing down, not a business arrangement.
  その船ふねは海岸かいがんを少すこし離はなれて停滞ていたいしていた。↗

  The ship stopped a little way off the shore.
• 不通ふつうJLPT N2approx.Common
  nounCovers 'tie-up' as a stoppage or interruption — a line or service cut off and not operating. For other senses of 'tie-up' this is not the word you want; it really means suspension.
  電話でんわは不通ふつうなの。↗

  The phones aren't working.

Use 提携 for a business tie-up, meaning a partnership or joint arrangement; 停滞 for a standstill or congestion, as in a traffic tie-up; and 不通 for a suspension or interruption of a line or service.

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

• 提携ていけいcooperation
• 停滞ていたいstagnation
• 不通ふつうsuspension