'Initial' definitions:

Definition of 'initial'

From: WordNet
adjective
Occurring at the beginning; "took the initial step toward reconciliation"
noun
The first letter of a word (especially a person's name); "he refused to put the initials FRS after his name"
verb
Mark with one's initials

Definition of 'Initial'

From: GCIDE
  • Initial \In*i"tial\, a. [L. initialis, from initium a going in, entrance, beginning, fr. inire to go into, to enter, begin; pref. in- in + ire to go: cf. F. initial. See Issue, and cf. Commence.] [1913 Webster]
  • 1. Of or pertaining to the beginning; marking the commencement; incipient; commencing; as, the initial symptoms of a disease. [1913 Webster]
  • 2. Placed at the beginning; standing at the head, as of a list or series; as, the initial letters of a name. [1913 Webster]

Definition of 'Initial'

From: GCIDE
  • Initial \In*i"tial\, n. The first letter of a word or a name. [1913 Webster]

Definition of 'Initial'

From: GCIDE
  • Initial \In*i"tial\, v. t. [imp. & p. p. Initialed; p. pr. & vb. n. Initialing.] To put an initial to; to mark with an initial of initials. [R.] [1913 Webster]