mutual
Word family
- mutuallyadverbB2
- mutualitynounC1
- mutualismnounC2
Synonym discussion
Sense: adjective/1
All four words describe a connection between two or more parties, but they differ in emphasis and register. 'Mutual' (everyday, broad) refers to feelings, actions, or states that two sides share equally — 'mutual respect,' 'mutual trust.' 'Reciprocal' is more formal and often used in legal, scientific, or diplomatic writing, where precise two-way exchange matters, as in 'reciprocal trade agreements' or 'reciprocal inhibition.' 'Joint' shifts the focus from the two-way nature to the shared ownership or responsibility: a 'joint account' belongs to both holders, and a 'joint decision' involves both parties equally, but the word does not imply that each side gives something back. 'Common' is the most general term — it simply means 'shared,' without specifying direction. A 'common goal' is one both parties work toward, but a 'common acquaintance' is known to both without any required exchange between them. In conversation, choose 'mutual' for emotional bonds and two-way dynamics, 'reciprocal' for formal agreements, 'joint' for shared possessions or responsibilities, and 'common' for general overlap.
Common collocations
Etymology
The word 'mutual' comes from Latin 'mutuus,' meaning 'lent, borrowed, reciprocal, exchanged.' It entered English through Middle French 'mutuel' during the 1400s. The original Latin root carried the idea of a back-and-forth exchange — lending and borrowing between two people, which later broadened to describe any shared or two-way feeling or action. The noun senses (a mutual organization, a mutual friend, a mutual follower) are much more recent, emerging in the 1800s for financial institutions and in the 2000s for social media connections.