• enroute,
• wn route,
• sn route,
• dn route,
• rn route,
• 4n route,
• 3n route,
• eb route,
• em route,
• ej route,
• eh route,
• en eoute,
• en doute,
• en foute,
• en toute,
• en 5oute,
• en 4oute,
• en riute,
• en rkute,
• en rlute

The adverb form of "en route" is "en route" itself. It is used to describe something happening or being done while on the way or in transit.

The adjective form of "en route" is "en route" itself. It is used to describe something or someone that is on the way to a destination. Example sentence: "The en route flight was delayed due to bad weather".