How to say "deployment" in Japanese

• 配置はいちJLPT N1approx.Common
  noun, suru verb, transitive verbDeployment in the sense of arranging or placing people and resources; use it when the point is how staff, equipment, or assets are positioned.
  軍隊ぐんたいは戦闘せんとうの配置はいちで整列せいれつしていた。↗

  The troops were in battle array.
• 配備はいびCommon
  noun, suru verb, transitive verbDeployment as stationing forces or equipment in position, as police and military do; the nuance is placing resources ready for use rather than merely arranging them.
• 派遣はけんJLPT N1approx.Common
  noun, suru verb, transitive verbDeployment as dispatching people to a destination: troops sent somewhere on a mission, or staff sent to another site; the movement of getting them there is the point.
  １９５１年ねんにシスター・テレサは当時とうじインド最大さいだいの都市としであったカルカッタに派遣はけんされた。↗

  In 1951, Sister Teresa was sent to Calcutta, then the largest city in India.
• 疎開そかいCommon
  noun, suru verb, transitive verb, intransitive verbReally dispersal rather than deployment: spreading troops out, or people moving out of a dangerous area. Seldom the word you want for deployment in general.
• 展開てんかいJLPT N2approx.Common
  noun, suru verb, transitive verb, intransitive verbDeployment as spreading out or unfolding over an area, as when forces extend their lines; its broader senses of expansion and development reach beyond deployment.
  与党よとうは野党やとう非難ひなんのキャンペーンを展開てんかいしています。↗

  The ruling party is running a smear campaign against the opposition.

Choose by what is being deployed and how: 配置 for arranging resources, 配備 for stationing forces or equipment, 派遣 for dispatching people, 展開 for spreading out, and 疎開 for dispersal.

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

• 配置はいちarrangement (of resources)
• 配備はいびdeployment
• 派遣はけんdispatch
• デプロイdeployment
• 散開さんかいdeployment
• デプロイメントdeployment
• 稼働かどうdeployment (e.g. to a production environment)
• 疎開そかいspreading out (troops)
• 展開てんかいexpansion