share

Concise Oxford English Dictionary © 2008 Oxford University Press:
share1

▶noun

• 1 a part or portion of a larger amount which is divided among or contributed by a number of people.

  ■ any of the equal parts into which a company's capital is divided.

  ■ part-ownership of property.

• 2 the allotted or due amount of something expected to be had or done.

  ■ a contribution to something.

▶verb

• 1 have a share of with another or others.

  ■ (often share something out) give a share of (something) to another or others.

  ■ possess in common with others.

  ■ (share in) have a part in (an activity).

• 2 tell someone about.

– phrases
share and share alike have or receive an equal share.

– derivatives
shareable (also sharable) adjective,
sharer noun.

– origin OE scearu, of Gmc origin; rel. to shear.

Concise Oxford English Dictionary © 2008 Oxford University Press:
share2

▶noun short for ploughshare.