- of kin; related by blood (usually used predicatively): cousins who were too closely akin for marriage.
- allied by nature; having the same properties: Something akin to vertigo was troubling her.
- having or showing an affinity; kindred: They are emotionally but not intellectually akin.
- related by blood; of the same kin
- (often foll by to) having similar characteristics, properties, etc
1550s, from phrase of kin; see kin.