godan ~す verb / transitive:

• to push; to press ［押す］
• to apply pressure from above; to press down ［押す・圧す］
• to stamp (i.e. a passport); to apply a seal ［押す・捺す］ ➜ 判を押す
• to affix (e.g. gold leaf) ［押す］
• to press (someone for something); to urge; to compel; to influence ［押す］
• to overwhelm; to overpower; to repress ［押す・圧す］
• to push (events along); to advance (a plan) ［押す］
• to do in spite of ...; to do even though ...; to force ［押す］
• to make sure ［押す］ ➜ 念を押す【ねんをおす】・駄目を押す【だめをおす】
• to be pressed for time ［押す］
• to advance troops; to attack ［押す］
• (of light) to be diffused across an entire surface ［押す］