necessity

必需品

なくては生活や活動が成り立たないもの。

やさしい英語で： Something you must have because you cannot manage without it.

• Clean water is a necessity.
• We packed only the basic necessities.
• For her job, a car is a necessity.

使い方： necessity for someone/something (A warm coat is a necessity for winter travel.)

類義語： essential, requirement

反対語： luxury

よく使う表現： basic necessity, daily necessity, a necessity, life’s necessities

必要性、必然性

何かが必要であること、または避けられないこと。

やさしい英語で： The fact that something is needed or cannot be avoided.

• We moved out of necessity.
• She questioned the necessity of another meeting.
• They emphasized the necessity of acting quickly.

使い方： necessity of doing something (He explained the necessity of saving money.); necessity for something (There is no necessity for immediate action.)

類義語： need

よく使う表現： out of necessity, necessity of something, absolute necessity