1. (n.) The quality or state of being single, or separate from all others; the opposite of doubleness, complication, or multiplicity.

2. (n.) Freedom from duplicity, or secondary and selfish ends; purity of mind or purpose; simplicity; sincerity; as, singleness of purpose; singleness of heart.

aloneness bachelordom bachelorhood bachelorism bachelorship celibacy combination continence elementarity fundamentality fusion homogeneity identity individuality indivisibility intactness integrality integration integrity inviolability irreducibility loneliness loneness lonesomeness maidenhead maidenhood misogamy misogyny monachism monasticism monism oneness organic unity particularity plainness purity selfsameness severity simpleness simplicity single blessedness single state singularity solidarity solidification solidity solitariness solitude spinsterhood starkness unadulteration undividedness unification uniformity uniqueness unity univocity unmixedness unsophistication unwed state virgin state virginity wholeness