WordNet sense 1 (the force used in pushing):

thrust

WordNet sense 2 (enterprising or ambitious drive):

energy, get-up-and-go

WordNet sense 3 (an electrical switch operated by pressing):

button, push button

WordNet sense 4 (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):

agitate, campaign, crusade, fight, press

WordNet sense 5 (strive and make an effort to reach a goal):

drive, labor, tug, labour

WordNet sense 6 (approach a certain age or speed):

crowd

WordNet sense 7 (move with force):

force

WordNet sense 8 (make publicity for; try to sell (a product)):

advertise, promote, advertize

WordNet sense 9 (press, drive, or impel (someone) to action or completion of an action):

bear on

WordNet sense 10 (the act of applying force in order to move something away):

pushing