How to say "setup" in Japanese

• 準備じゅんびJLPT N4approx.Common
  noun, suru verb, transitive verbCovers setup as the act of getting ready: preparations or arrangements made before an event, meeting, or activity. Think of the setup for a party — getting the room and materials ready in advance.
  準備じゅんびができるまでちょっと待まってくれ。↗

  Hang on a bit until I'm ready.
• 組織そしきJLPT N3approx.Common
  noun, suru verb, transitive verb, intransitive verbCovers setup in the sense of structure or constitution — the way an organization, group, or system is put together. It fits only this structural sense of setup, not the preparation or configuration senses.
  もっとも重要じゅうようなことは、脳のうにはこれらの解剖学かいぼうがく的てき組織そしきを結合けつごうする全体的ぜんたいてきな再入さいにゅう経路けいろが必要ひつようである。↗

  Most important of all, the brain needs global reentry pathways connecting these anatomical structures.
• 設定せっていJLPT N1approx.Common
  noun, suru verb, transitive verbCovers setup as configuration: the options, preferences, or settings of a device, program, or system. Use it for the setup of software or equipment, including initial setup and later changes.
  鍵かぎのいらない暗証あんしょうタイプには、お好すきな番号ばんごうを設定せっていできるフリーダイヤル式しきと、あらかじめ番号ばんごうが設定せってい済ずみの固定こてい式しきとがあります。↗

  For code-type locks that don't need a key, there are 'free dial' systems where you can set any number you like, and fixed types where the number is set in advance.

Use 準備 for setup as getting ready or making arrangements, 組織 for setup meaning the structure or way something is organized, and 設定 for setup as configuration or settings.

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

• 準備じゅんびpreparation
• セットアップ(initial) setup
• 組織そしきstructure
• 設定せっていoptions setting
• ふりlead in (to a joke, question, etc.)