inject

To put medicine or another substance into someone’s body using a needle.

• She needs to inject insulin every day.
• The nurse injected him with a painkiller.
• Where should I inject this medicine?

How to use it: inject something into someone/something (The nurse injected the medicine into his arm.); inject someone with something (The doctor injected her with a painkiller.)

Common phrases: inject insulin, inject someone, inject a drug

To add money, energy, or something else to help an activity or situation.

• We need to inject more money into the project.
• Her arrival injected new energy into the team.
• The government plans to inject funds into public transport.

How to use it: inject something into something (Investors injected fresh money into the business.)

Similar words: add, put in

Common phrases: inject money, inject fresh capital, inject new energy

To force a liquid or gas into a space or passage.

• The pump injects water into the pipe.
• Fuel is injected into the engine under pressure.
• They injected foam into the gap in the wall.

How to use it: inject something into something (The machine injects gas into the sealed chamber.)

Similar words: pump, force

Common phrases: inject fuel, inject gas, inject water

To suddenly bring a new feeling, idea, or element into a situation.

• His joke injected humour into the tense meeting.
• The sudden news injected fear into the crowd.
• Her question injected a new issue into the debate.

How to use it: inject something into something (The warning injected urgency into the discussion.)

Similar words: introduce, bring in

Common phrases: inject some humour, inject sudden urgency, inject fresh tension