from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. The quality of being sole; unity, singleness.
from the GNU version of the Collaborative International Dictionary of English
- n. The state of being sole, or alone; singleness.
from The Century Dictionary and Cyclopedia
- n. The state of being sole, alone, or unconnected with others; singleness.
From Middle English solnes ("solitude"), equivalent to sole + -ness. (Wiktionary)