|1.||[ noun ] (work) an organization of employees formed to bargain with the employer|
|Synonyms:||labor_union brotherhood trades_union trade_union|
"you have to join the union in order to get a job"
|Related terms:||organization industrial_union craft_union company_union international_workers_of_the_world labor_movement|
|2.||[ adjective ] being of or having to do with the northern United States and those loyal to the Union during the Civil War|
"Union soldiers" "Federal forces" "a Federal infantryman"
|3.||[ noun ] (government,geography) the United States (especially the northern states during the American Civil War)|
"he has visited every state in the Union" "Lee hoped to detach Maryland from the Union" "the North's superior resources turned the scale"
|Related terms:||US free_state US northern|
|4.||[ noun ] (biology,sexuality) the act of pairing a male and female for reproductive purposes|
|Synonyms:||mating sexual_union conjugation pairing coupling|
"the casual couplings of adolescents" "the mating of some species occurs only in the spring"
|Related terms:||sexual_activity inbreeding hybridization assortative_mating servicing disassortative_mating copulate conjugate|
|5.||[ noun ] (law,sociology) the state of being a married couple voluntarily joined for life (or until divorce)|
|Synonyms:||marriage matrimony spousal_relationship wedlock|
"a long and happy marriage" "God bless this union"
|Related terms:||marital_status exogamy misalliance endogamy common-law_marriage polygamy sigeh monandry monogamy polyandry monogamousness open_marriage polygamy marriage_of_convenience bigamy law|
|6.||[ noun ] a set containing all and only the members of two or more given sets|
"let C be the union of the sets A and B"
|Related terms:||set direct_sum|
|7.||[ noun ] the occurrence of a uniting of separate parts|
"lightning produced an unusual union of the metals"
|Related terms:||happening fusion combination combine amphimixis|
|8.||[ adjective ] of trade unions|
"the union movement" "union negotiations" "a union-shop clause in the contract"
|Related terms:||nonunion closed organised organized|
|9.||[ noun ] the state of being joined or united or linked|
"there is strength in union"
|Related terms:||separation state association connection junction coinherence syncretism marriage coalition|
|10.||[ noun ] (politics,geography) a political unit formed from previously independent people or organizations|
"the Soviet Union"
|Related terms:||political_unit league confederation enosis customs_union|
|11.||[ noun ] (heraldry) a device on a national flag emblematic of the union of two or more sovereignties (typically in the upper inner corner)|
|12.||[ noun ] (biology,medicine) healing process involving the growing together of the edges of a wound or the growing together of broken bones|
|Related terms:||healing coapt|
|13.||[ noun ] making or becoming a single unit|
|Synonyms:||uniting conjugation jointure unification|
"the union of opposing factions" "he looked forward to the unification of his family for the holidays"
|Related terms:||disunion combination combination coalescence reunion umbrella tribalisation unify connect|