斎藤和英大辞典

投ずる

読み方 とうずる

他動詞

1

（＝投げる、投げ入れる、投げ捨てる）to throw; to throw in; to throw away; to give up; to cast

用例

汽車に石を投ずる
to throw stones at a running train

彼は海に投じて死んだ
He threw himself into the sea―drowned himself in the sea.

獄に投ずる
to cast one into prison―put one in prison

火中に投ずる
to throw anything into the fire―commit anything to the flames

この手紙を読み次第に火中に投ぜよ
As soon as you have read this letter, commit it to the flames.

彼は剣を投じて文筆を事とした
He give up the sword for the pen.

2

（＝身を投ずる）to plunge into, launch into （politics）; to embark in, launch forth in （an enterprise）; to venture on （a speculation）; to devote oneself to, commit oneself to （some cause）; to join, cast in one's lot with （a party）; to desert to, go over to （the enemy）

用例

校長は火中に身を投じて御真影を取出した
The principal plunged into the fire, and rescued the Imperial portrait.

政界に身を投ずる
to plunge into politics―launch into politics―go into politics

事業に身を投ずる
to embark in an enterprise―launch forth in an enterprise

投機事業に身を投ずる
to venture on a speculation

教育に一身を投ずる
to devote oneself to―commit oneself to―the cause of education

政党に投ずる
to join a political party―cast in one's lot with a party

彼は財産を使い果たして社会党に投じた
He went through his fortune, and joined the socialists.

不平を起こして敵に投じた
He laboured under a sense of wrong, and went over to the enemy―deserted to the enemy.

山賊に投ずる
to join the bandits―take to the road

そうすれば日本は戦争の渦中に投ぜざるを得ぬ
Then Japan will be embroiled in a war.

思い切って一身を投ずる
to take the plunge

3

（＝資を投ずる）to invest, sink, lay out （capital in anything）; to spend, expend （money on anything）; to give （so much for something）

用例

事業に資本を投ずる
to invest capital in―sink one's capital in―lay out money in―an enterprise

彼は鉱山に資本を投じている
He has sunk his capital in mines.

全財産を挙げて一事業に投ずるは愚である
It is foolish to invest one's all in a single enterprise―risk one's all on a single venture―“put all one's eggs in one basket.”

公共事業に私財を投ずる
to expend private funds on a public enterprise

彼は私財を投じて治水工事をした
He undertook river-improvement works at his own expense.

これは彼が大金を投じて建てた家だ
The house was built at a great cost.

十万円を投じて建てた家だ
The house was built at a cost of 100,000 yen.

大金を投じて買った家だ
He gave a large sum for the house.

十万円を投じて買った家だ
He gave 100,000 yen for the house.

4

（＝機に投ずる） opportune; seasonable; timely; well-timed

用例

これは機に投じたる策と言うべし
It mush be pronounced an opportune scheme―a timely project.

5

（＝人気に投ずる）to catch popularity; to catch on; to take; to hit （the taste）

用例

その小説は人気に投じてたいそう売れた
The novel caught on, and sold immensely.

計略が人気に投じてその男は大金を儲けた
The stratagem took, and the man made a fortune.

その演劇は世人の嗜好に投じた
The play hit the taste of the public―hit the popular fancy.

人気に投ずる策だ
The scheme is a claptrap.

人気に投ずる小説だ
It is a sensational novel.

これは人気に投ずる話題だ
This is a taking topic.

6

（＝投合する）to agree with （one's temper）; to coincide with （one's views）; to hit with, jump with （one's humour）; to fall in with, strike in with （one's views）

用例

その計画は彼の意気に投じた
The scheme hit with his humour―jumped with his humour―fell in with his views―struck in with his views.

この策が世人の意気に投じた
The scheme hit with the popular humour―jumped with the popular wishes.

二人は意気相い投じている
They are congenial spirits.

JMdict

投ずる

読み方：とうずる

（動詞一段活用（ずる）） to throw; to cast; to invest

日本語WordNet(英和)

投ずる

【動詞】

project, throw, cast, contrive

前に置く、または前に送る

(put or send forth)

She threw the flashlight beam into the corner 彼女は懐中電燈の光を角に向けた The setting sun threw long shadows 夕日が長い影を落とした cast a spell 呪文を投げ掛ける cast a warm light 暖かい光を放つ

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