verb

1. To push or pump (something, especially fluids) into a cavity or passage.

   “The nurse injected a painkilling drug into the veins of my forearm.”

2. To introduce (something) suddenly or violently.

   “Punk injected a much-needed sense of urgency into the British music scene.”

3. To administer an injection to (someone or something), especially of medicine or drugs.

   “Now lie back while we inject you with the anesthetic.”