1. Private mark.

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

• ideographic,
• videography,
• udeograph,
• jdeograph,
• kdeograph,
• odeograph,
• 9deograph,
• 8deograph,
• idograph,
• ideograh,
• ideogrpah,
• ideogrphy,
• myelograph,
• anemogaph,
• Anemogreph,
• ediograph,
• ellipseograph,
• idiograh,
• olerograph,
• zincograph

• ideographic,
• ideogram,
• ideography,
• idiographic.

The adjective form of the word "ideograph" is "ideographic".

The plural of the "ideograph" can be the "ideographs".

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