group

グループ、集団

一緒にいる、または何らかの関係で結び付いた複数の人や物。

やさしい英語で： Several people or things that are together or connected in some way.

• A group of friends came over.
• We divided the class into three groups.
• Which group do you belong to?

使い方： a group of someone/something (A group of children waited outside.)

類義語： set, collection

よく使う表現： group of people, a small group, join a group, group of houses

官能基

分子の中で、その分子に特定の化学的な性質を与える原子の集まり。

やさしい英語で： A set of atoms in a molecule that gives it particular chemical properties.

• This molecule contains a hydroxyl group.
• The two groups react differently with water.
• Adding a methyl group changed the chemical properties.

類義語： functional group

よく使う表現： functional group, hydroxyl group, methyl group

まとめる、分類する

共通の特徴や目的に従って、人や物を一つのまとまりにする。

やさしい英語で： To put people or things together according to a shared feature or purpose.

• Group the toys by colour.
• The teacher grouped the children into teams.
• These plants are usually grouped together.

使い方： group someone/something by something (Group the books by subject.); group someone/something into something (The teacher grouped us into pairs.); group someone/something together (Group similar items together.)

類義語： arrange, classify, sort

反対語： separate

よく使う表現： group things together, group by size, group someone with someone