Definitions of push:

• noun:   the act of applying force in order to move something away

  Example: "He gave the door a hard push"

• noun:   an effort to advance

  Example: "The army made a push toward the sea"

• noun:   the force used in pushing

  Example: "The push of the water on the walls of the tank"

• noun:   an electrical switch operated by pressing a button

  Example: "The elevator was operated by push buttons"

• noun:   enterprising or ambitious drive
• verb:   approach a certain age or speed

  Example: "She is pushing fifty"

• verb:   sell or promote the sale of (illegal goods such as drugs)

  Example: "The guy hanging around the school is pushing drugs"

• verb:   press, drive, or impel (someone) to action or completion of an action

  Example: "He pushed her to finish her doctorate"

• verb:   move with force, "He pushed the table into a corner"
• verb:   press against forcefully without being able to move

  Example: "She pushed against the wall with all her strength"

• verb:   move strenuously and with effort

  Example: "The crowd pushed forward"

• verb:   make strenuous pushing movements during birth to expel the baby

  Example: "`Now push hard,' said the doctor to the woman"

• verb:   strive and make an effort to reach a goal

  Example: "We have to push a little to make the deadline!"

• verb:   make publicity for; try to sell (a product)

  Example: "The salesman is aggressively pushing the new computer model"

• verb:   exert oneself continuously, vigorously, or obtrusively to gain an end or engage in a crusade for a certain cause or person; be an advocate for

  Example: "The liberal party pushed for reforms"

• name:  A surname (very rare: popularity rank in the U.S.: #79512)