This is the 8815th most frequent Catalan word.
esposa
Wife.
In this sentence, 'esposa' is used to mean 'wife', which is a common and primary meaning of the word in Catalan.
L'esposa del meu amic és molt amable.
My friend's wife is very kind.
Here, 'esposas' refers to 'handcuffs', which is a derived meaning referring to the restraining device, emphasizing the conceptual link to being bound or tied.
Antigament, es feien servir esposas per subjectar els presoners.
In ancient times, they used handcuffs to restrain prisoners.
In this context, 'esposa' acts as a verb form from 'esposar', meaning 'to tie or bind' something together.