A — 1: ἄλαλος
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(Strong's #216 — Adjective — alalos — al'-al-os )

lit., "speechless" (a, negative, and laleo, "to speak"), is found in Mark 7:37; 9:17,25 . In the Sept., Psalm 38:13 .

A — 2: ἄφωνος
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(Strong's #880 — Adjective — aphonos — af'-o-nos )

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: κωφός
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(Strong's #2974 — Adjective — kophos — ko-fos' )

denotes "blunted or dulled;" see DEAF.

B — 1: σιωπάω
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(Strong's #4623 — Verb — siopao — see-o-pah'-o )

from siope, "silence, to be silent," is used of Zacharias' "dumbness," Luke 1:20 . See PEACE (hold one's).