Nouns

(n)share, portion, part, percentageassets belonging to or due to or contributed by an individual person or group“he wanted his share in cash”
(n)shareany of the equal portions into which the capital stock of a corporation is divided and ownership of which is evidenced by a stock certificate“he bought 100 shares of IBM at the market price”
(n)parcel, portion, sharethe allotment of some amount by dividing something“death gets more than its share of attention from theologians”
(n)contribution, part, sharethe effort contributed by a person in bringing about a result“I am proud of my contribution in advancing the project”, “they all did their share of the work”
(n)plowshare, ploughshare, sharea sharp steel wedge that cuts loose the top layer of soil

Verbs

(v)sharehave in common“Our children share a love of music”, “The two countries share a long border”
(v)shareuse jointly or in common
(v)partake, share, partake inhave, give, or receive a share of“We shared the cake”
(v)share, divvy up, portion out, apportion, dealgive out as one's portion or share
(v)sharecommunicate“I'd like to share this idea with you”