• Loneliness, the state of "feeling lonely," describes a human state or feeling involving isolation, or the feeling of disconnection with others, etc.

"Lonely" is also the name of many notable songs:

• "Lonely" is a 1988 song from Crimson Glory's album Transcendence.
• "Lonely" (Merril Bainbridge song) is a 1998 single by teen pop star Merril Bainbridge's second album Between the Days.
• "Lonely" (Akon song) is a 2005 single by Senegalese singer Akon's album Trouble.
• "Lonely" (Shannon Noll song) is a 2006 single from Shannon Noll's second album Lift.
• "Lonely" (Sharon Sheeley song), a song performed by Eddie Cochran
• "Lonely" is a 2007 song from Bon Jovi's album Lost Highway.

See also

• The Lonely
• Lonely Planet
• Lonely runner conjecture