noun The act of doing that which begins anything; commencement of an action, state, or space of time; entrance into being or upon a course; the first act, effort, or state of a succession of acts or states.
noun That which is begun; a rudiment or element.
noun That which begins or originates something; the source or first cause.
What was the beginning of the dispute?
noun The initial portion of some extended thing.
The author describes the main character’s youth at the beginning of the story.
verb present participle and gerund of begin
He is beginning to read a new book.
adjective Being the first portion of some extended thing.