solitude

As a noun solitude

is aloneness; state of being alone or solitary, by oneself.

As a letter x is

the twenty-fourth letter of the.

As a symbol x is

voiceless velar fricative.

As nouns the difference between solitude and insolation

is that solitude is aloneness; state of being alone or solitary, by oneself while insolation is the incident radiant energy emitted by the sun which reaches a unit area over a period of time, typically measured over a horizontal area at the earth's surface or at the top of earth's atmosphere.

As a noun solitude

is aloneness; state of being alone or solitary, by oneself.

As an adjective false is

(label) one of two states of a boolean variable; logic.

As nouns the difference between solitude and reclusiveness

is that solitude is aloneness; state of being alone or solitary, by oneself while reclusiveness is the state or characteristic of being reclusive.

As nouns the difference between solitude and recluse

is that solitude is aloneness; state of being alone or solitary, by oneself while recluse is a person who lives in self-imposed isolation or seclusion from the world, especially for religious purposes; a hermit.

As an adjective recluse is

(now rare ) sequestered; secluded, isolated.

As a verb recluse is

(obsolete) to shut; to seclude.

As a noun solitude

is aloneness; state of being alone or solitary, by oneself.

As an adjective undefined is

lacking a definition or value.

As nouns the difference between solitude and individualism

is that solitude is aloneness; state of being alone or solitary, by oneself while individualism is the tendency for a person to act without reference to others, particularly in matters of style, fashion or mode of thought.

As nouns the difference between solitude and multitude

is that solitude is aloneness; state of being alone or solitary, by oneself while multitude is a great amount or number, often of people; myriad; profusion; abundance.

As nouns the difference between philosophy and solitude

is that philosophy is the love of wisdom while solitude is aloneness; state of being alone or solitary, by oneself.

As a verb philosophy

is to philosophize.

Solitude is a synonym of retiredness.

As nouns the difference between solitude and retiredness

is that solitude is aloneness; state of being alone or solitary, by oneself while retiredness is quality of being retired or withdrawn.