Sentinel

Last Updated: January 2, 2026 at 12:30 PM

Scrabble:8 ptsWWF:11 pts8 letters

Definition of Sentinel

Noun

  1. A sentry, watch, or guard.
  2. A private soldier.
  3. A unique value recognised by a computer program for processing in a special way, or marking the end of a set of data.

    "The <xmp> tag is a sentinel that suspends web-page processing and displays the subsequent text literally"

  4. A sentinel crab.
  5. A sign of a health risk (e.g. a disease, an adverse effect).

    "sentinel animals can be used to explore endemic diseases."

Verb

  1. To watch over as a guard.

    "He sentineled the north wall."

  2. To post a guard for.

    "He sentineled the north wall with just one man."

Anagrams of Sentinel

+1 Letter Anagrams

Words formed by adding one letter to "sentinel" and rearranging: