Extended Strong's Greek Lexicon (Abbott-Smith based)
clean
Usage: καθαρός, -ά, -όν [in LXX chiefly for טָהוֹר ;] pure, clean. __1. Physically: Mat.23:26 27:59, Jhn.13:10-11 (fig.), Jhn.15:3 (figuratively, as of a vine cleansed by pruning), Heb.10:22, Rev.15:6 19:8, 14 21:18, 21. __2. Ceremonially: Luk.11:41, Rom.14:20, Tit.1:15. __3. Ethically; __(a) of persons: Jhn.13:16, Act.18:6, Tit.1:15; ό κ. τῇ καρδίᾳ (καθαρὸς χεῖρας, Hdt., i, 35), Mat.5:8; before ἀπό (cl. with genitive simp.; ΒΙ., § 36, 11; Deiss., BS, 196; MM, Exp., xv), Act.20:26;
__(b) of things: καρδία, 1Ti.1:6, 2Ti.2:22; συνείδησις, 1Ti.3:9, 2Ti.1:3; θρησκεία, Jas.1:27.† SYN.: see: ἁγνός. (AS)