Definition of "sentinelling" [sentinelling]

• Present participle of sentinel. (verb)

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• "The round green hills sentinelling the broad, expansive bosom of the Hudson held her attention by their beauty as the train followed the line of the stream."
• "The dry stalks, sentinelling the seared ground, waved their tattered remnants of unpicked bolls to and fro -- summer's battle flags which had not yet fallen."
• "Dignity and grace lie in these tall swaying trees sentinelling the way on either side."