1. Indirect course.

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

• interection,
• intrection,
• indiaction,
• indigetion,
• edirection,
• instrection,
• insurection,
• inserection,
• insprection,
• infrection,
• indirrection,
• indrection,
• indiretion,
• indirecion,
• indirecton,
• indirectin,
• indriection,
• indireciton,
• indirecttion,
• inconection

• interaction,
• instruction,
• intrenchment,
• indirect fire,
• indirectness,
• interestingly,
• introjection,
• indirect,
• interesting,
• indirectly,
• interdiction,
• direction,
• intrench,
• intersecting,
• indication,
• intersection,
• introspection,
• indigestion,
• indirect tax,
• interactional,
• interest,
• interjection.

The adjective form of the word "indirection" is "indirect".

The plural of the "indirection" can be the "indirections".

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