alone Definition

alone
adj, adverb

1. By oneself.

Thesaurus: lone, solitary, abandoned, apart, by oneself, isolated, single, separate, detached, unattached; singly, independently, single-handedly, solo; Antonym: accompanied, escorted.
2. Without anyone else.

Example: The idea was mine alone
3. Apart from other people.
4. Lonely.

Idiom: go it alone

colloq
To act on one's own and without help.

Idiom: leave alone (leave well alone)

See under leave¹.

Idiom: let alone

See under let¹.

Idiom: not alone

Joined by others.
Example: You're not alone in thinking she's nuts

Etymology: 13c: from English al one wholly by oneself.