to push somebody gently, especially with your elbow, in order to get their attention

to push somebody/something gently or gradually in a particular direction

He nudged the ball past the goalie and into the net.

(figurative)He nudged the conversation towards the subject of money.

(figurative)She tried to nudge him into changing his mind .

to move forward by pushing with your elbow

He nudged his way through the crowd.

to reach or make something reach a particular level

Inflation was nudging 20 per cent.

This afternoon's sunshine could nudge the temperature above freezing.

LEARNit Dictionary