| dark | Standard, Standard.Debug, Standard.Pipes |
| darker | Standard, Standard.Debug, Standard.Pipes |
| dashedCircle | Lessons.Bear |
| delayed | Extras.Animation |
| delayedMotion | Standard, Standard.Debug, Standard.Pipes |
| dilate | Standard.Pipes |
| dilated | Lessons.Logic, Standard, Standard.Debug, Standard.Pipes |
| dilatedPoint | Standard, Standard.Debug, Standard.Pipes |
| dist | Extras.Geometry |
| distributed | Standard, Standard.Debug, Standard.Pipes |
| dist_point_line | Extras.Geometry |
| div | Lessons.Operators |
| done | Extras.Do |
| dot | Standard, Standard.Debug, Standard.Pipes |
| dotProduct | Standard, Standard.Debug, Standard.Pipes |
| DotPt | Extras.Geometry |
| dottyline | Extras.Turtle |
| dottylines | Extras.Turtle |
| dot_pt | Extras.Geometry |
| dot_radius | Extras.Geometry |
| dphase | Extras.Geometry |
| drawCircle | Extras.Geometry |
| drawingOf | |
| 1 (Function) | Lessons.Logic, Standard, Standard.Pipes |
| 2 (Function) | Standard.Debug |
| drawLine | Extras.Geometry |
| drawLineWith | Extras.Geometry |
| drawPoint | Extras.Geometry |
| drawPointAs | Extras.Geometry |
| drawPointsLabels | Extras.Geometry |
| drawRay | Extras.Geometry |
| drawSegment | Extras.Geometry |
| dull | Standard, Standard.Debug, Standard.Pipes |
| duller | Standard, Standard.Debug, Standard.Pipes |
| Duration | Extras.Animation |
| durationOf | Extras.Animation |