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1.
a specific form of loneliness of a romantic type, characterized by being much worse than regular loneliness
Lauren Schiely, overwhelmed by lonliness, cried heavily.
by Charles Barkley (the second) November 20, 2008
 
2.
being completly alone, weather by choice or fate
a feeling of complete dispair will smother the unfortunate beholder
i pity the person who experiences lonliness yet we all do at some point or another
When he was gone the feeling of lonliness enclosed her, smothering her, pure hell.
by annabellafate April 30, 2008