1. A formal speech delivered in public on some weighty matter; a formal discourse on a special occasion.

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

• varation,
• oparation,
• oerations,
• ocation,
• corotion,
• ouction,
• oeration,
• airation,
• urnation,
• horation,
• reation,
• irration,
• druation,
• obtion,
• horatian,
• aration,
• oragon,
• ceration,
• opition,
• opeation

• ordination,
• Ordaining,
• ortmann,
• ordainer,
• ortman,
• Orton,
• ordain,
• ortner,
• ordained,
• orotund,
• ordonez.

The adverb form of "oration" is "oratorically".

The adjective form of the word "oration" is "oratorical".

The plural of the "oration" can be the "orations".

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