Wiktionary.org : Text is available under the Creative Commons Attribution-ShareAlike License
Use "sentinelling" in a sentence
"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."