1. A vault under the choir or chancel of a church; a secret walk under ground.

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

• undercraft,
• yndercroft,
• hndercroft,
• jndercroft,
• indercroft,
• 8ndercroft,
• 7ndercroft,
• ubdercroft,
• umdercroft,
• ujdercroft,
• uhdercroft,
• uncercroft,
• unedercroft,
• undercroftt,
• undecroft,
• undercrot,
• undercrof,
• udnercroft,
• undercrofte,
• Undercrofted

The adjective form of the word "Undercroft" is "undercrofted".

The plural of the "Undercroft" can be the "undercrofts".

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