Word: sentinels
A sentry, watch, or guard.
A private soldier.
A unique string of characters recognised by a computer program for processing in a special way; a keyword. Example: The tag is a sentinel that suspends web-page processing and displays the subsequent text literally.
A sentinel crab.
A sign of a health risk (e.g. a disease, an adverse effect). Example: sentinel animals can be used to explore endemic diseases.
You can find a list of possible crossword clues for SENTINELS below.