(now rare) The state of being alone; loneliness, solitariness.

Solitary; having no companion. / Isolated or lonely; lacking companionship. / Sole; being the only one of a type. / Situated by itself or by oneself, with no neighbours.

Unhappy because of feeling isolated from contact with other people. / (of a place or time) Unfrequented by people; desolate. / (of a person) Without companions; solitary.

(idiomatic) To go alone.

plural of no-lone zone

Alternative spelling of no-lone zone

An area into which entry by a single individual is prohibited; commonly an area with accessibility to a nuclear weapon.

(idiomatic) An individual person who acts on his or her own initiative, without partners, especially one who has sole responsibility for doing something questionable, confidential, or iniquitous.

plural of Lone Scout

(Scouting) A member of the Scouting movement who is in an isolated area or otherwise does not participate in a regular Scouting unit or organization.