Pronunciation: (nul'i-tē), [key]
—pl. -ties for 2–4.
1. the state or quality of being null; nothingness; invalidity.
2. something null.
3. something of no legal force or validity.
4. a person of negligible importance.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.