STEP Greek Lexicon: διάνοια

διάνοια, -ας, ἡ

[in LXX chiefly for לֵב, לֵבָב ;]

the understanding, mind: Luk.1:51, Eph.4:18, Col.1:21, 1Pe.1:13, 2Pe.3:1, 1Jn.5:20; pl., Eph.2:3; in quotations from LXX, Mat.22:37, Mrk.12:30, Luk.10:27, Heb.8:10 10:16 (Cremer, 79, 438).†

(AS)