A part or portion belonging to, distributed to, contributed by, or owed by a person or group. An equitable portion: do one's share of the work. Any of the equal parts into which the capital stock of a corporation or company is divided. To divide and parcel out in shares; apportion. To participate in, use, enjoy, or experience jointly or in turns. To relate (a secret or experience, for example) to another or others. To accord a share in (something) to another or others: shared her chocolate bar with a friend. To have a share or part: shared in the profits. To allow someone to use or enjoy something that one possesses: Being in daycare taught the child to share. To use or enjoy something jointly or in turns: There is only one computer, so we will have to share. go shares To be concerned or partake equally or jointly, as in a business venture. A plowshare.