Толковый словарь английского языка Oxford English Reference - alone

adj. & adv. --predic.adj. 1 a without others present (they wanted to be alone; the tree stood alone). b without others' help (succeeded alone). c lonely and wretched (felt alone). 2 (often foll. by in) standing by oneself in an opinion etc. (was alone in thinking this). --adv. only, exclusively (you alone can help me). Phrases and idioms go it alone act by oneself without assistance. Derivatives aloneness n. Etymology: ME f. ALL + ONE