Definitions

to stop someone or something developing or doing as well as they should:

If a film, play, etc. is held over, it is shown or performed more times than was originally planned, usually because it is very popular with the public.

If a supply of something such as food or money holds out, there is enough of it to last for a particular period of time.

to give another person control of someone or something, or responsibility for dealing with him, her, or it:

to give another person control of someone or something, or responsibility for dealing with him, her, or it:

to give another person control of someone or something, or responsibility for dealing with him, her, or it:

to not tell someone about something: