civil union is a noun meaning "a voluntary union for life (or until divorce) of adult parties of the same sex". It carries one recorded sense.
a voluntary union for life (or until divorce) of adult parties of the same sex
“parties to a civil union have all the same benefits, protections, and responsibilities under Vermont law as spouses in a marriage”
law
Definitions, synonyms and semantic relations for civil union come from Princeton University’s WordNet. Commonness is measured against a corpus of everyday English. Full sources and licences.