verb (used with object), sen·ti·neled, sen·ti·nel·ing or (especially British) sen·ti·nelled, sen·ti·nel·ling.
Origin of sentinel
Examples from the Web for sentinel
A web promotion for X-Men: Days of Future Past indicated that the character had been killed by a Sentinel in 2011.
That might have been what happened to the Sentinel that landed in Iran.
They may be taking some action in the future, given the weaknesses that appear to have been exposed in the Sentinel.
When Johnston talks about the failure of the Sentinel in Iran, he sounds frustrated.
A sentinel is present 24 hours a day, seven days a week, 365 days a year, including holidays.
He was in the midst of a story, all life and animation, when the gruff words of the sentinel broke in so abruptly upon him.The Frontier Angel|Edward S. Ellis
She shortly revived, and sitting up, her head against the sentinel's shoulder, told us her story.
"They're coming," shouted Robert, but his voice was lost, for the sentinel at the gate had heard also.The Shadow of Victory|Myrtle Reed
Mike now assumed a manner of mysterious importance, laying a finger on his nose, and pointing towards the sentinel and Jamie.Wyandotte|James Fenimore Cooper
The sentinel discovers with alarm the sudden approach of the enemy; the unarmed villagers view it with affright.English Synonyms and Antonyms|James Champlin Fernald
British Dictionary definitions for sentinel
verb -nels, -nelling or -nelled (tr)
Word Origin for sentinel
Word Origin and History for sentinel
1570s, from Middle French sentinelle (16c.), from Italian sentinella "a sentinel." OED says "No convincing etymology of the It. word has been proposed," but perhaps (via a notion of "perceive, watch"), from sentire "to hear," from Latin sentire "feel, perceive by the senses" (see sense (n.)).