Alone

a. [From all and one; Ger. allein, D. alleen, Sw. allena, Dan. alene.] 1. Apart from, or exclusive of, others; single; solitary; — applied to a person or thing. Alone, alone, all, all alone, Alone on a wide, wide sea. Coleridge. It is not good that man should be alone. Gen. ii. 18. 2. Sole; only. [Rare.] God, by whose alone power and conversation we all live, and move, and have our being. Bentley. 3. Singular; rare; excellent. [Obs.] Here's sport alone For him, in faith. Marston. This adjective properly follows its noun. To let alone, to suffer to rest; to forbear molesting or meddling with; to suffer to remain in its present state.

Separately; by itself.