Definitions of decide:

• verb:   reach, make, or come to a decision about something

  Example: "We finally decided after lengthy deliberations"

• verb:   bring to an end; settle conclusively

  Example: "The case was decided"

• verb:   cause to decide

  Example: "This new development finally decided me!"

• verb:   influence or determine

  Example: "The vote in New Hampshire often decides the outcome of the Presidential election"