Meaning of keep sth back In English

• 0 to not use the whole amount of something so that there is a small amount remaining for later

• 1 to not tell someone everything you know about a situation or an event that has happened:

  • I suspect she's keeping something back.

• 2 to not use the whole amount of something:

  • We'll need to keep back some of the budget for travel later in the year.