(~s)
1.
If you have an ~, a doctor or nurse puts a medicine into your body using a device with a needle called a syringe.
They gave me an ~ to help me sleep...
N-COUNT: also by N
2.
An ~ of money or resources into an organization is the act of providing it with more more money or resources, to help it become more efficient or profitable. (BUSINESS)
An ~ of cash is needed to fund some of these projects...
N-COUNT: with supp, oft N of n