1. A sect of Christians that arose in Plymouth and elsewhere about 1830, and are mainly distinguished for their rejection of clericalism and their assertion of the equal standing and privilege of every member of the Church of Christ, which they regard as the organ of the salvation, by separation from the world, of God's elect.

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

• olymouth brethren,
• llymouth brethren,
• -lymouth brethren,
• 0lymouth brethren,
• pkymouth brethren,
• ppymouth brethren,
• poymouth brethren,
• pltmouth brethren,
• plgmouth brethren,
• plhmouth brethren,
• plumouth brethren,
• pl7mouth brethren,
• pl6mouth brethren,
• plynouth brethren,
• plykouth brethren,
• plyjouth brethren,
• plymiuth brethren,
• plymkuth brethren,
• plymluth brethren,
• plymputh brethren

The adjective form of "Plymouth Brethren" is "Plymouth Brethren". As a proper noun, it is typically used to refer to a specific group or sect of Christians, rather than as an adjective.

The plural of the "Plymouth Brethren" can be the "Plymouth Brethren".

The singular of the "Plymouth Brethren" can be the "Plymouth Brethren".