aloneadjective
Alone means with no other person there, or with no one and nothing else involved.
with no one elsewithout any other person with you
predicative only [pred] comparative with more [more]
- Are you alone, or is someone with you?
- When the guests had gone, we were finally alone.
- She likes to be alone for an hour before work.
- The cat seems happiest when it is alone.
Collocations
adverb + adjective all alone, completely alone, entirely aloneCompare lonely (lonely says that you are unhappy because you have no company; alone says only that no one else is there)
without help or supportwithout anyone to help or support you, or feeling that no one shares your situation
predicative only [pred] comparative with more [more]
- You're not alone; a lot of people find this hard. (you are not the only one)
- After the argument she felt completely alone.
- He was left alone to deal with the problem.
Collocations
adjective + preposition alone inonlybeing the only one, with no one or nothing else
after the noun [after noun] not gradable [not gradable]
- Sara alone knew where the key was. (after a name or pronoun)
- The rent alone costs more than I earn in a month.
- Talent alone is not enough; you also have to work.
- Time alone will tell whether the plan works.
Synonyms only
Choosing between alone · lonely
Alone says only that no one else is there, and carries no feeling: Kim lives alone and likes it. Lonely says that you are unhappy because you have no company, and you can be lonely in a crowd: He felt lonely in the new city. On your own means the same as alone and is more common in speech; it also means without help: I fixed it on my own.
Usage
After a verb (She traveled alone; I did it alone), alone is an adverb and has its own entry: alone (adverb). Leave me alone (stop bothering me) is under leave, and let alone (even less) is under let.
Common mistakes
Lonely means sad because you have no company; alone is neutral.
Word origin
Alone is all plus one: it began as the phrase all one, meaning wholly by yourself. Lone was made from it later by dropping the first syllable, and lonely comes from lone.
Checked against: Wiktionary, Online Etymology Dictionary (2026-09-16)
See also alone (alone after a verb: she traveled alone)