1. An under-deacon, or deacon's assistant.

Nuttall's Standard dictionary of the English language By Nuttall, P.Austin

• aubdeacon,
• zubdeacon,
• xubdeacon,
• dubdeacon,
• eubdeacon,
• wubdeacon,
• sybdeacon,
• subdeacom,
• subdecon,
• subdeakon,
• sub deacon,
• subdiacom,
• subdiacon,
• subdeakin,
• subdeaken,
• suddeacon,
• subdecan,
• subdiacen,
• subdiacin,
• subdecion

The adjective form of the word "subdeacon" is "subdiaconal".

The plural of the "subdeacon" can be the "subdeacons".

The singular of the "subdeacon" can be the "subdeacon".