trade unions negotiated a new collective agreement to protect workers' rights.

Several labor unions negotiated a new safety protocol to protect night-shift workers.

The technician replaced the worn pipe unions to prevent leaks during the pressure test.

Across the country, students' unions coordinated a nationwide campaign to improve campus mental health services.

Across the country, student unions organized a peaceful march to demand better mental health services.

In the 17th century, several kingdoms were linked by personal unions that influenced European politics.

After years apart, the neighborhood association held two re-unions so old neighbors could catch up.

Several countries have recently expanded the legal recognition of civil unions to include more rights for same-sex couples.

Enterprise unions across the region coordinated their demands before the national labor talks.

Many labour unions negotiated a landmark agreement to improve safety standards across the industry.