Exordiums and Exordium

Exordium and exordiums are semantically related. in preface topic. In some cases you can use "Exordium" instead a noun "Exordiums", when it comes to topics like introduction, something new, introduction to a document, beginning of event.

Exordium noun - A short section (as of a book) that leads to or explains the main part.

Exordiums and exordium are semantically related. Sometimes you can replace term "Exordiums" with "Exordium", this nouns are similar.