1. Species of fresh or tidewater tortoise.

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

• terrein,
• terragon,
• terapi,
• terain,
• trrain,
• terraine,
• terrrain,
• terriain,
• turrain,
• tarrain,
• terrafing,
• terrarin,
• terrapen,
• teerapin,
• terrpin,
• terrappin,
• turrapin,
• tarrapin,
• sarrazin,
• Teramyn

• terpene,
• terbinafine,
• terebinth,
• terrapene,
• terrifying.

The adjective form of the word "terrapin" is "terrapinish". However, it is not a commonly used adjective, and it would be more appropriate to describe a terrapin using alternative adjectives such as "turtle-like," "terrapin-like," or "terrapin-shaped".

The plural of the "terrapin" can be the "terrapins".

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