夫妻 (fū qī) literally combines 夫 (fū), meaning 'husband', and 妻 (qī), meaning 'wife'. Together, they form a compound noun meaning 'married couple' — emphasizing the legal and social bond between two spouses. Unlike terms like 恋人 (liànrén, 'romantic partners') or 男女朋友 (nánnǚ péngyǒu, 'boyfriend/girlfriend'), 夫妻 specifically denotes a formal, registered marriage relationship.

This word is neutral in register and commonly used in everyday speech, news reports, legal documents, and family discussions. It appears frequently in contexts involving household responsibilities, shared finances, parenting, or marital counseling. While the characters individually carry traditional gender associations, the term itself is widely used regardless of cultural shifts and remains standard in both spoken and written Chinese. It does not imply age, duration of marriage, or presence of children — only the marital status itself.