union

liên đoàn lao động, công đoàn

an organization that represents workers in a particular country or industry and protects their rights

• a union member
• join a union

Collocations union leader · union representative

• He is a member of the teachers' union.

  Anh ấy là thành viên của công đoàn giáo viên.

sáp nhập, hợp nhất

the joining together of two or more organizations, companies, etc., to form a single organization

• a union between two companies
• merge into a union

Collocations union of companies · union agreement

• The merger was completed last year.

  Sáp nhập đã hoàn thành vào năm ngoái.

hợp tác, liên minh

the joining together of people or groups to work for a common purpose

• a union between two countries
• form a union

Collocations union of forces · union of efforts

• The two countries formed an economic union.

  Hai nước đã hình thành một liên minh kinh tế.

tập hợp hợp nhất trong toán học

the set of all the numbers or items that are in two or more sets, but not any others

• union of sets