viññatti: (lit. 'making known') 'intimation', is an Abhidhamma term for bodily expression (kāya-viññatti) and verbal expression (vacī-viññatti), both belonging to the corporeality-group. They are produced by the co-nascent volition, and are therefore, as such, purely physical and not to be confounded with kamma (q.v.), which as such is something mental. Cf. Kath. 80, 100, 101, 103, 194 (s. Guide V). - (App.).

 "One speaks of 'bodily expression', because it makes known an intention by means of bodily movement, and can itself be understood by the bodily movement which is said to be corporeal.

" 'Verbal expression' is so called because it makes known an intention by means of a speech-produced noise" (Vis.M. XIV).

Buddhist Dictionary, Manual of Buddhist Terms and Doctrines, by NYANATILOKA MAHATHERA

viññatti : [f.] intimation; information.

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

Viññatti (f.) [fr. viññāpeti] intimation, giving to under- stand, information; begging or asking by intimation or hinting (a practice forbidden to the bhikkhu) Vini.72 (˚bahula, intent on . . .); iii.144 sq. (id.); iv.290; J iii.72 (v. nāma na vaṭṭati, is improper); Vbh 13; Vism 41 (threefold: nimitta˚, obhāsa˚, parikathā; as t. t., cp. Cpd. 1201: medium of communication); Miln 343, 370; DhA ii.21 (viññattiŋ katvā bhuñjituŋ na vaṭṭati); PvA 146. -- Two kinds of viññatti are generally distinguished, viz. kāya˚ and vacī˚, or intimation by body (gesture) and by voice: Dhs 665, 718; Miln 229 sq.; Vism 448, 530, 531. Cp. Cpd. 22, 264.

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