Meaning

• A gentle push.

• A feature of instant messaging software used to get the attention of another user, as by shaking the conversation window or playing a sound.

• The rotation by one step of a fruit machine reel of the player's choice.

  "Since the machine was showing two lemons and a cherry, I decided to try a nudge."

• The use of positive reinforcement and indirect suggestions as ways to influence.

Meaning

• To push against gently, especially in order to gain attention or give a signal.

• To near or come close to something.