Longman Dictionary of Contemporary English homepage

Date: 1500-1600
Language: French
Origin: sentinelle, from Old Italian sentinella, from sentina 'keeping watch', from sentire, from Latin; SENTIENT

sentinel

 noun
     
Related topics: Military
sen‧ti‧nel [countable] old-fashioned
PM a sentry
Definition from the Longman Dictionary of Contemporary English
Advanced Learner's Dictionary.

Dictionary pictures of the day
Do you know what each of these is called?
What is the word for picture 1? What is the word for picture 2? What is the word for picture 3? What is the word for picture 4?
Click on any of the pictures above to find out what it is called.

Explore our topic dictionary

Browse the dictionary