To decide is to make up your mind to do (or not do) something. People decide hundreds of things a day, from what to eat to what TV shows to watch.

Deciding involves making decisions — choosing what to do. There are a lot of things in life to decide, such as where to live, what school to go to, where to apply for a job, and what kind of clothes to buy and wear. At any restaurant, there are hundreds of options: you have to decide which is right for you. You can also say that if a touchdown ended a game, it decided the game.

Definitions of decide
  1. verb
    reach, make, or come to a decision about something
    “We finally decided after lengthy deliberations”
    synonyms: determine, make up one's mind
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    measure, measure out, mensurate
    determine the measurements of something or somebody, take measurements of
    choose, pick out, select, take
    pick out, select, or choose from a number of alternatives
    determine by choice
    decide irrevocably
    purpose, resolve
    reach a decision
    decree, rule
    decide with authority
    orient, orientate
    determine one's position with reference to another point
    adjudicate, judge, try
    put on trial or hear a case and sit as the judge at the trial of
    govern, order, regularise, regularize, regulate
    bring into conformity with rules or principles or usage; impose regulations
    standardise, standardize
    cause to conform to standard or norm
    empanel, impanel, panel
    select from a list
    measure the altitude of by using a sextant
    measure by using trigonometry
    caliper, calliper
    measure the diameter of something with calipers
    choose by or as if by divine intervention
    select (a team or individual player) for a game
    sieve, sift
    distinguish and separate out
    select or take in from a given group or region
    choose by means of a dial
    go, plump
    give support (to) or make a choice (of) one out of a group or number
    select carefully from a group
    excerpt, extract, take out
    take out of a literary work in order to cite or copy
    cull out, winnow
    select desirable parts from a group or list
    cream off, skim off
    pick the best
    pick over, sieve out
    separate or remove
    assign, set apart, specify
    select something or someone for a specific purpose
    single out
    select from a group
    override, overrule, overthrow, overturn, reverse
    rule against
    think of
    choose in one's mind
    measure the caliber of
    define, determine, fix, limit, set, specify
    decide upon or fix definitely
    rule in, rule out
    include or exclude by determining judicially or in agreement with rules
    guide, guide on
    use as a guide
    reorient, reorientate
    orient once again, after a disorientation
    adopt, espouse, follow
    choose and follow; as of theories, ideas, policies, strategies or plans
    screen, screen out, sieve, sort
    examine in order to test suitability
    vote in
    elect in a voting process
    select by a vote for an office or membership
    nominate, propose
    put forward; nominate for appointment to an office or for an honor or position
    express one's preference for a candidate or for a measure or resolution; cast a vote
    subject to trial by court-martial
    district, zone
    regulate housing in; of certain areas of towns
  2. verb
    influence or determine
    “The vote in New Hampshire often decides the outcome of the Presidential election”
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    type of:
    determine, influence, mold, regulate, shape
    shape or influence; give direction to
  3. verb
    bring to an end; settle conclusively
    “The case was decided
    “The judge decided the case in favor of the plaintiff”
    synonyms: adjudicate, dispose, resolve, settle
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    determine the result of (a competition)
    decide how much is to be paid on an insurance claim
    referee, umpire
    be a referee or umpire in a sports competition
    type of:
    end, terminate
    bring to an end or halt
  4. verb
    cause to decide
    “This new development finally decided me!”
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    type of:
    cause, get, have, induce, make, stimulate
    cause to do; cause to act in a specified manner
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