by itself

by itself

Alone; with nothing else added. One nail by itself won't hold up that picture frame—put another nail in on this side. I think this dish is fine by itself—it doesn't need a sauce.See also: by, itself

by itself

with the help of nothing else; without the addition of anything else. Will this food be enough by itself for all of us? Can the dog get out of the house by itself?See also: by, itself