n (countable) One who lives alone, or in solitude; an anchorite, hermit or recluse.
n (uncountable) Solitary confinement.
n (uncountable) The state of being solitary; solitude
adj Living or being by oneself; alone; having no companion present
adj Performed, passed, or endured alone
adj Not much visited or frequented; remote from society
adj Not inhabited or occupied; without signs of inhabitants or occupation; desolate; deserted
adj gloomy; dismal, because of not being inhabited.
adj Single; individual; sole.
adj (botany) Not associated with others of the same kind.
n (archaic) The Rodrigues solitaire (Pezophaps solitaria), an extinct flightless bird.