initial
1. [ adjective ] occurring at the beginning
Examples:

"took the initial step toward reconciliation"

Related terms: first
2. [ noun ] the first letter of a word (especially a person's name)
Examples:

"he refused to put the initials FRS after his name"

Related terms: letter
3. [ verb ] mark with one's initials
Related terms: sign approve
Similar spelling:   initially
  initialize
  initialise
  inutile
  intelnet
  inutility
  intellect