(~s)
1.
If there has been an ~, someone has forgotten to do something which they should have done.
By an unfortunate ~, full instructions do not come with the product.
N-COUNT
2.
If someone has ~ of a process or system, they are responsible for making sure that it works efficiently and correctly.
...a new system, where there’ll be greater ~ of doctors...
= supervision
N-UNCOUNT: oft N of n