Dumb - Vine's Expository Dictionary of New Testament Words
Dumb
[ A-1,Adjective,G216, alalos ]lit., speechless" (a, negative, and laleo, "to speak"), is found in Mark 7:37; Mark 9:17, Mark 9:25. In the Sept., Psalms 38:13.
[ A-2,Adjective,G880, aphonos ]
lit., "voiceless, or soundless" (a, negative, and phone, "a sound"), has reference to voice, Acts 8:32; 1 Corinthians 12:2; 2 Peter 2:16, while alalos has reference to words. In 1 Corinthians 14:10 it is used metaphorically of the significance of voices or sounds, "without signification." In the Sept. Isaiah 53:7.
[ A-3,Adjective,G2974, kophos ]
denotes "blunted or dulled;" See DEAF.
[ B-1,Verb,G4623, siopao ]
from siope, "silence, to be silent," is used of Zacharias' "dumbness," Luke 1:20. See PEACE (hold one's).