Adjective
1. lacking companions or companionship;
"he was alone when we met him""she is alone much of the time""the lone skier on the mountain""a lonely fisherman stood on a tuft of gravel""a lonely soul""a solitary traveler"2. characterized by or preferring solitude in mode of life;
"the eremitic element in the life of a religious colony""a lone wolf""a man of a solitary disposition"3. being the only one; single and isolated from others;
"the lone doctor in the entire county""a lonesome pine""an only child""the sole heir""the sole example""a solitary instance of cowardice""a solitary speck in the sky"