• Tangent
• Tape Measure
• Target object
• Temporarily activate another tool
• Temporarily activate Selection Tool
• Test
• Text Style Resource
• Texture
• Texture Tool
• Tile Resource
• Title Block
• Title Block Manager command
• Tool Highlight Function
• Tool Mode
• Transformable Plug-in Object
• Transformation
• Translate
• Trim Command
• Truss Chord Info Record
• Truss Cross Section
• Truss Properties
• Truss Symbol
• Truss System
• Truss Tool