Initial

Definition:

• 1. Existing or occurring at the beginning.
• 2. The first letter of a name or word, typically a person’s given name or a word forming part of a phrase.
• 3. Mark or sign (a document) with one’s initials in order to authorise or validate it.

Example:

• 1. “our initial impression was favourable”
• 2. “they carved their initials into the desktops”
• 3. “the man initialled the three warrants”

Synonyms:

• 1. beginning, opening, commencing, starting
• 2. initial letter, beginning letter
• 3. put one’s initials on, sign, countersign, autograph, endorse