When you hungrily eye the pizzas your friends ordered, count everyone in the room, and then mentally divide the number of slices by the number of people, you're figuring out your share, or portion, of pizza.

Your share of something can be the part of the total that's due to you — your share of the piñata candy — or it can be the section of something you're responsible for, like doing your share of cleaning out the garage. When you use share as a verb, it means to give or distribute a portion of something. The word share and its meaning of dividing into pieces come from the Proto-Indo-European word sker, "to cut."

Definitions of share
  1. noun
    assets belonging to or due to or contributed by an individual person or group
    “he wanted his share in cash”
    synonyms: part, percentage, portion
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    a portion of something (especially money)
    a share that has been dispensed or distributed
    a share of money or food or clothing that has been charitably given
    a portion of something divided into shares
    a fixed portion that is allotted (especially in times of scarcity)
    an amount allowed or granted (as during a given period)
    piece, slice
    a share of something
    a promised or claimed share of loot or money
    interest, stake
    (law) a right or legal share of something; a financial involvement with something
    profit sharing
    a system in which employees receive a share of the net profits of the business
    a share of the profits
    allocation, allotment
    a share set aside for a specific purpose
    funds advanced to a prospector or to someone starting a business in return for a share of the profits
    controlling interest
    ownership of more than 50% of a corporation's voting shares
    insurable interest
    an interest in a person or thing that will support the issuance of an insurance policy; an interest in the survival of the insured or in the preservation of the thing that is insured
    vested interest
    (law) an interest in which there is a fixed right to present or future enjoyment and that can be conveyed to another
    security interest
    any interest in a property that secures the payment of an obligation
    terminable interest
    an interest in property that terminates under specific conditions
    undivided interest, undivided right
    the interest in property owned by tenants whereby each tenant has an equal right to enjoy the entire property
    an interest in land capable of being inherited
    rake-off, vigorish
    a percentage (of winnings or loot or profit) taken by an operator or gangster
    a share that has been allocated again
    a proportional share assigned to each participant
    privy purse
    allowance for a monarch's personal expenses
    the ownership interest of shareholders in a corporation
    (law) an interest in an estate that reverts to the grantor (or his heirs) at the end of some period (e.g., the death of the grantee)
    (frequently plural) the interest possessed by law or custom in some intangible thing
    type of:
    anything of material value or usefulness that is owned by a person or company
  2. noun
    any 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”
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    type of:
    stock, stock certificate
    a certificate documenting the shareholder's ownership in the corporation
  3. noun
    the allotment of some amount by dividing something
    “death gets more than its share of attention from theologians”
    synonyms: parcel, portion
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    type of:
    allocation, allotment, apportioning, apportionment, assignation, parceling, parcelling
    the act of distributing by allotting or apportioning; distribution according to a plan
  4. noun
    the part played by a person in bringing about a result
    “they all did their share of the work”
    synonyms: contribution, part
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    the part you are expected to play
    type of:
    attempt, effort, endeavor, endeavour, try
    earnest and conscientious activity intended to do or accomplish something
  5. verb
    have in common
    “Our children share a love of music”
    “The two countries share a long border”
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    have some of the qualities or attributes of something
    have at least three points in common with
    type of:
    coincide partially or wholly
  6. verb
    use jointly or in common
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    double up
    share a room or a bed designed for only one person
    combine into a common fund
    communalise, communalize
    make something the property of the commune or community
    type of:
    apply, employ, use, utilise, utilize
    put into service; make work or employ for a particular purpose or for its inherent or natural purpose
  7. verb
    have, give, or receive a share of
    “We shared the cake”
    synonyms: partake, partake in
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    cut in
    allow someone to have a share or profit
    type of:
    acquire, get
    come into the possession of something concrete or abstract
  8. verb
    give out as one's portion or share
    synonyms: apportion, deal, divvy up, portion out
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    type of:
    distribute, give out, hand out, pass out
    give to several people
  9. verb
    “I'd like to share this idea with you”
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    type of:
    communicate, intercommunicate
    transmit thoughts or feelings
  10. noun
    a sharp steel wedge that cuts loose the top layer of soil
    synonyms: ploughshare, plowshare
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    type of:
    something solid that is usable as an inclined plane (shaped like a V) that can be pushed between two things to separate them
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