A hill of sand, or a hill covered with sand.(noun)
The Century Dictionary (Public Domain)
Use "sand-hill" in a sentence
"Small blame to Amyas if he was thinking, not of his lonely mother at Burrough Court, but of those quick bright flashes on sand-hill and on fort, where Salvation Yeo was hurling the eighteen-pound shot with deadly aim, and watching with a cool and bitter smile of triumph the flying of the sand, and the crashing of the gabions."
"So he paced to and fro, looking carefully out now and then over the strip of sand-hill which lay between him and the fort; but all was blank and black, and moreover it began to rain furiously."
"At four miles got to the rise, which is a scrubby sand-hill."