This is the 2597th most frequent Russian word.
супруга
Wife; spouse.
Here, 'супруга' refers to 'spouse' or specifically 'wife' when speaking about one's marital partner.
Моя супруга приготовила вкусный ужин.
My spouse prepared a delicious dinner.
In this sentence, 'супруга' is used to specifically indicate 'wife' when referring to someone else's partner.
Его супруга работает в банке.
His wife works in a bank.
Here, the word's root is used in the form 'супружескую' as an adjective to describe a married couple, underlining its versatility in related contexts.