1alone 
/əˈloʊn/ adjective
not used before a noun /əˈloʊn/ adjective 1 a : without anyone or anything else : not involving or including anyone or anything else : separate from other people or things
▪ I was all alone [=by myself] in the office yesterday. ▪ This wine goes well with food, but is also very good alone. ▪ I got him alone and asked him what had really happened. ▪ She lived alone for many years. ▪ She doesn't mind being alone because she never feels lonely/lonesome. ▪ He was alone with his thoughts.
b : without people that you know or that usually are with you
▪ This is the first time the couple has been out alone together since the birth of their child. [=the first time they have gone somewhere without their child] ▪ He traveled alone [=by himself] to visit his grandparents when he was only seven. ▪ She was nervous about being (all) alone in the city when she started her new job. ◊If you are not alone when you do something, you are not the only person who is doing it.
▪ She's worried about losing her job, and she's not alone. [=other people are also worried about losing their jobs] ▪ He was not alone in calling for reform. Many people were demanding changes. 2 [more alone; most alone] : feeling unhappy because of being separated from other people
▪ He felt very alone when he went away to school.
▪ I was all alone [=by myself] in the office yesterday. ▪ This wine goes well with food, but is also very good alone. ▪ I got him alone and asked him what had really happened. ▪ She lived alone for many years. ▪ She doesn't mind being alone because she never feels lonely/lonesome. ▪ He was alone with his thoughts.
b : without people that you know or that usually are with you
▪ This is the first time the couple has been out alone together since the birth of their child. [=the first time they have gone somewhere without their child] ▪ He traveled alone [=by himself] to visit his grandparents when he was only seven. ▪ She was nervous about being (all) alone in the city when she started her new job. ◊If you are not alone when you do something, you are not the only person who is doing it.
▪ She's worried about losing her job, and she's not alone. [=other people are also worried about losing their jobs] ▪ He was not alone in calling for reform. Many people were demanding changes.
▪ He felt very alone when he went away to school.
