spouse

/spaʊs/noun

The person someone is married to; a husband or wife.

Example sentence

“Employees may add a spouse to their health insurance plan.”

Formal and legal in tone, standard on tax forms and applications. In conversation people say 'husband', 'wife', or 'partner'.

Related words

husbandA married man, considered in relation to the person he is married to.siblingA brother or sister; someone who has a parent in common with you.wifeA woman who is married, seen in relation to her partner.parentSomeone who brings up a child, whether the child is their own by birth, adoption, or fostering.neighborA person who lives next door to you or nearby (the US spelling of neighbour).nieceThe daughter of your brother or sister, or of your spouse's brother or sister.