投入(とうにゅう)

とうにゅう
noun / suru verb
throwing in; deployment; commitment (of resources)
1. throwing in, inserting
The physical act of throwing or putting something into a container, machine, or space.
コインを投入(とうにゅう)してください。
Please insert a coin.
材料(ざいりょう)を鍋(なべ)に投入(とうにゅう)する。
Throw the ingredients into the pot.
自動販売機(じどうはんばいき)にお金(かね)を投入(とうにゅう)したが、商品(しょうひん)が出(で)てこなかった。
I put money into the vending machine, but the product didn't come out.
2. deployment, commitment (of resources, personnel, effort)
Committing personnel, funds, time, or other resources to a task, project, or situation. Common in business, military, and policy contexts.
大量(たいりょう)の人員(じんいん)を投入(とうにゅう)した。
A large number of personnel were deployed.
政府(せいふ)は経済(けいざい)対策(たいさく)に巨額(きょがく)の予算(よさん)を投入(とうにゅう)した。
The government committed an enormous budget to economic measures.
開発(かいはつ)に時間(じかん)と労力(ろうりょく)を投入(とうにゅう)したが、期待(きたい)どおりの成果(せいか)は得(え)られなかった。
We committed time and effort to development, but didn't achieve the expected results.

USAGE:
Used as both a noun and a suru verb. Sense 1 is concrete and physical, while sense 2 is figurative, referring to the commitment of abstract resources. Both senses share the core image of putting something into something else.

COMMON COLLOCATIONS:

  • コインを投入(とうにゅう)する: to insert a coin
  • 人員(じんいん)を投入(とうにゅう)する: to deploy personnel
  • 資金(しきん)を投入(とうにゅう)する: to commit funds
  • 労力(ろうりょく)を投入(とうにゅう)する: to put in effort

SIMILAR WORDS:

  • 投下(とうか): dropping; capital investment (more formal, narrower scope)
  • 導入(どうにゅう): introduction, adoption (of systems or technology)
general
Added 2026.2.22 23:22
12500/12895_tounyuu