1. noun /bɪˈɡɪn.ɪŋ/
a) 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.
The author describes the protagonists youth in the beginning of the story
The house you want is down at the beginning of the street
Syn: commencing, starting
2. adjective /bɪˈɡɪn.ɪŋ/
Of or relating to the first portion of some extended thing
in the beginning paragraph of the chapter
Wikipedia foundation.