viveka : [m.] detachment; seclusion.

A.P. Buddhadatta Mahathera, Concise Pali-English and English-Pali Dictionary [available as digital version from Metta Net, Sri Lanka]

Viveka [fr. vi+vic] detachment, loneliness, separation, seclusion; "singleness" (of heart), discrimination (of thought) D i.37, 182; iii.222, 226, 283=S iv.191 (˚ninna citta); S i.2, 194; iv.365 sq.; v.6, 240 sq.; A i.53; iii.329; iv.224; Vin iv.241; Sn 474, 772, 822, 851, 915, 1065; Nd1 158, 222; J i.79; iii.31; Dhs 160; Pug 59, 68; Nett 16, 50; DhsA 164, 166; ThA 64; PvA 43; Sdhp 471. -- viveka is given as fivefold at Ps ii.220 sq. and VbhA 316, cp. K.S. i.321 (Bdhgh on S iii.2, 8), viz. tadanga˚, vikkhambhana˚, samuccheda˚ paṭippassaddhi˚, nissaraṇa˚; as threefold at Vism 140, viz. kāya˚, citta˚, vikkhambhana˚, i. e. physically, mentally, ethically; which division amounts to the same as that given at Nd1 26 with kāya˚, citta˚, upadhi˚, the latter equivalent to "nibbāna." Cp. on term Dial. i.84. See also jhāna. Cp. pa˚.

Pali-English Dictionary, TW Rhys Davids, William Stede,

Separation.

Sarvastivada Abhidharma, Sanskrit-English Glossary, by Bhikkhu KL Dhammajoti