exordium

As nouns the difference between preface and exordium

is that preface is the part of the liturgy that precedes the main part of the eucharist while exordium is a beginning.

As nouns the difference between exordium and prolegomenon

is that exordium is a beginning while prolegomenon is (usually|in the plural) a prefatory discussion; a formal essay or critical discussion serving to introduce and interpret an extended work.

As nouns the difference between exordium and preamble

is that exordium is a beginning while preamble is a short preliminary statement or remark, especially an explanatory introduction to a formal document or statute.

As nouns the difference between opening and exordium

is that opening is an act or instance of making or becoming open while exordium is a beginning.

As a verb opening

is .

As an adjective opening

is (cricket).

As nouns the difference between taxonomy and exordium

is that taxonomy is the science or the technique used to make a classification while exordium is a beginning.

Exordium is a synonym of exord.

As nouns the difference between exordium and exord

is that exordium is a beginning while exord is (us|military) an execute order: an order to implement a specified plan.