Definitions of contain:

• verb:   be capable of holding or containing
• verb:   be divisible by

  Example: "24 contains 6"

• verb:   include or contain; have as a component

  Example: "The record contains many old songs from the 1930's"

• verb:   lessen the intensity of; temper; hold in restraint; hold or keep within limits
• verb:   contain or hold; have within

  Example: "This can contains water"

• verb:   hold back, as of a danger or an enemy; check the expansion or influence of

  Example: "Contain the rebel movement"