The Britannica Dictionary mobile search

×

The Britannica Dictionary

sentinel

1 ENTRIES FOUND:

sentinel (noun)

sentinel /ˈsɛntənəl/ noun

plural sentinels

sentinel

/ˈsɛntənəl/

noun

plural sentinels

Britannica Dictionary definition of SENTINEL

[count]

: sentry

armed sentinels

[+] more examples [-] hide examples [+] Example sentences [-] Hide examples

— sometimes used figuratively

The trees stand sentinel [=stand in a row like soldiers] on the cliffs.

[+] more examples [-] hide examples [+] Example sentences [-] Hide examples

ASK THE EDITOR

What are the plural forms of check-in, passerby, and spoonful?

See the answer »

QUIZZES

Vocabulary Quiz Icon

Vocabulary Quiz

Test your word power

Take the Quiz »

Name That Thing Icon

Name That Thing

Take our visual quiz

Test Your Knowledge »

WORD OF THE DAY

Replenish Illustration

: to fill or build up (something) again (somewhat formal)

Learn More »