/kom'euh nal"i tee/ , n. , pl. commonalities .
1. a sharing of features or characteristics in common; possession or manifestation of common attributes.
2. a feature or characteristic held in common: Historians perceive commonalities of behavior in many eras.
3. commonalty (def. 1).
[ 1350-1400; ME; partial Latinization of COMMONALTY, on basis of presumed L * communalitas (see -ITY) ]