number

数字

２や８のように、数や量を表す書かれた記号。

やさしい英語で： A written sign, such as 2 or 8, that shows how many or how much.

• Write the number five.
• She circled the numbers on the page.
• Can you read that number on the sign?

類義語： numeral, figure

よく使う表現： write a number, single number, large number

数、人数

人や物がどれだけあるかを表す数。

やさしい英語で： How many people or things there are.

• The number of guests increased.
• We counted the total number of books.
• What is the maximum number of players?

使い方： the number of + plural noun (The number of visitors is growing.)

類義語： count, total

よく使う表現： the total number, a small number, number of people

いくつかの、何人かの

「a number of」で、いくつかの物や何人かの人を表す。

やさしい英語で： Several people or things, in an expression starting with “a” and followed by “of.”

• A number of people called.
• We visited a number of small villages.
• A number of questions remain unanswered.

使い方： a number of + plural noun (A number of students are waiting outside.)

よく使う表現： a number of, a small number

数

整数、分数、負の数など、数学で使う値。

やさしい英語で： A value used in mathematics, including whole values, fractions, and values below zero.

• Three is a positive number.
• Divide both numbers by two.
• This equation has no solution among the real numbers.

よく使う表現： real number, negative number, complex number

演目、曲

ショーの一部として演じる歌や踊りなどの短い出し物。

やさしい英語で： A song, dance, or other short piece performed as part of a show.

• The band played a lively number.
• Their opening number delighted the audience.
• She danced in three numbers during the show.

類義語： piece, song

よく使う表現： opening number, dance number, musical number

番号を付ける

物を区別できるように、１、２、３などの番号を付ける。

やさしい英語で： To give each thing a figure such as 1, 2, or 3 so it can be identified.

• Please number the pages.
• We numbered every box before moving.
• The seats are numbered from one to twenty.

使い方： number something from … to … (Number the questions from one to ten.)

よく使う表現： number the pages, number each item, number the seats

達する、数える

数えたときの合計が、ある数に達する。

やさしい英語で： To have a particular total when counted.

• The group numbers fifty people.
• The crowd numbered about two thousand.
• Their supporters now number in the millions.

使い方： number + quantity (The team numbers twelve members.); number in the hundreds/thousands (The visitors numbered in the thousands.)

類義語： total, amount to

よく使う表現： number in thousands, number over something

終わりを決定づける

人や物があとどれだけ存続できるかを限る。

やさしい英語で： To limit how much longer someone or something can continue to exist.

• His days as manager are numbered.
• The storm has numbered the old tree’s days.
• With sales falling, the company’s days may be numbered.

使い方： someone’s/something’s days are numbered (The old factory’s days are numbered.)

よく使う表現： number someone’s days, number something’s days