limit

制限、上限

できること、持てる量、使える量を決める規則や境界。

やさしい英語で： A rule or boundary that controls how much you can do, have, or use.

• The speed limit is fifty.
• We set a limit on spending.
• Have you exceeded your credit limit?

使い方： a limit on something (There is a limit on the number of visitors.); a limit to something (There are legal limits to the president's power.)

類義語： restriction, cap, ceiling

よく使う表現： speed limit, time limit, set a limit

限界、上限

到達できる最も遠い地点、または可能な最大の量。

やさしい英語で： The furthest point something can reach or the greatest amount that is possible.

• Everyone has a limit.
• The machine was working at its limit.
• That journey tested the limits of my patience.

使い方： the limit of something (The runners had reached the limit of their endurance.)

類義語： maximum, boundary

よく使う表現： reach the limit, upper limit, limit of endurance, city limit

制限する、限定する

物事を決まった量、区域、範囲の中に収める。

やさしい英語で： To keep something within a particular amount, area, or range.

• We must limit our spending.
• The rule limits each group to ten people.
• They limited the discussion to safety issues.

使い方： limit something to something (Please limit your answer to one sentence.)

類義語： restrict, cap

反対語： expand

よく使う表現： limit something to something, limit the amount, limit spending, limit the power

制約する、制限する

人の自由や、物事を行う能力を狭める。

やさしい英語で： To reduce someone's freedom or ability to do things.

• Strict rules limit our freedom.
• Her injury limited her ability to walk.
• Don't let fear limit your choices.

類義語： restrict, constrain

反対語： free, liberate

よく使う表現： limit someone's freedom, limit someone's choices, limit someone's opportunities

収束する

数学の数列や関数が、ある値に限りなく近づく。

やさしい英語で： For a mathematical sequence or function to get closer and closer to a particular value.

• These values limit on zero.
• The sequence limits on the point marked A.
• Both sequences limit on the same value.

使い方： limit on a point/value (This sequence limits on zero.)

類義語： converge

反対語： diverge

よく使う表現： limit on zero, limit on something