1. The act of involving or infolding; the state of being involved or entangled; complication; the insertion of one or more clauses or members of a sentence in a way which involves the construction; the raising of a quantity to any given power.

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

• invotation,
• inclution,
• insolution,
• invoation,
• invovation,
• invokation,
• inviolation,
• invaluation,
• elvolution,
• incorrution,
• involutee,
• involytion,
• involition,
• invollution,
• involoution,
• inovlution,
• innvolution,
• invoolutions,
• involoutions,
• involutuions

• evolution,
• inflection,
• involute,
• involucre,
• inviolate,
• influence,
• influenza,
• involuntarily,
• inflation,
• infliction,
• involucrate,
• influent,
• involuntary,
• influential,
• influentially.

The adjective form of the word "involution" is "involuted".

The plural of the "involution" can be the "involutions".

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