nounπShareA sentry, watch, or guard."The security guard stood as a vigilant sentinel, watching over the entrance to the office building. "militarypolicejobChat with AIVocabulary GamePractice Reading
nounπShareA private soldier."The sentinel stood guard outside the general's tent, ensuring no one entered without permission. "militarypersonjobChat with AIVocabulary GamePractice Reading
nounπShareA unique string of characters recognised by a computer program for processing in a special way; a keyword."The tag is a sentinel that suspends web-page processing and displays the subsequent text literally."computingtechnicaltechnologywordsystemsignaldevicelanguageelectronicsinternetinfoChat with AIVocabulary GamePractice Reading
nounπShareA sentinel crab."The sentinel crab scurried into its burrow, watching the beach for approaching predators. "animalbiologynatureChat with AIVocabulary GamePractice Reading
nounπShareA sign of a health risk (e.g. a disease, an adverse effect)."sentinel animals can be used to explore endemic diseases."medicinesignbodyChat with AIVocabulary GamePractice Reading
verbπShareTo watch over as a guard."He sentineled the north wall."militarypolicejobactionChat with AIVocabulary GamePractice Reading
verbπShareTo post as guard."He sentineled him on the north wall."militaryjobpoliceChat with AIVocabulary GamePractice Reading
verbπShareTo post a guard for."He sentineled the north wall with just one man."militarypolicejobserviceChat with AIVocabulary GamePractice Reading
