(all) by itself - definition and synonyms

  1. 1
    not near any others

    His house stood by itself on the edge of the village.

  2. 2
    without help, or without being made to do something

    The door opens by itself as you approach it.

    The baby will soon be able to stand up all by itself.

  3. 3
    used for showing that one particular thing is the only thing involved

    Nuclear power by itself cannot provide for all our energy needs.

See also main entry: itself