Definition of Alone

It's being without friends. reclusiveness. a disposition to prefer seclusion or isolation.
Alone is colorless unless reinforced by all; it then suggests solitariness or desolation: alone in the house; all alone on an island. Lone is somewhat poetic or is intended. Lonely implies a sad or disquieting feeling of isolation. Lonesome connotes emotion, a longing for companionship.