membership

会員資格、加入

クラブや団体の会員であること。会費が必要な場合が多い。

やさしい英語で： The state of belonging to a club or organization, often after paying a fee.

• My gym membership ends soon.
• She renewed her club membership yesterday.
• Does membership include free swimming lessons?

使い方： membership of something (Membership of the club costs twenty pounds a year.); membership in something (Membership in the association is open to everyone.)

よく使う表現： gym membership, annual membership, membership of something, membership in something

所属

数などが、ある数学的な集合の要素であること。

やさしい英語で： The fact that a number or other thing belongs to a particular mathematical group.

• This symbol expresses set membership.
• We tested each number for membership in the set.
• Membership depends on the rule defining the set.

使い方： membership of a set (The symbol indicates membership of a set.)

よく使う表現： set membership, membership relation, membership of something