To run aground is to drive a boat onto the bottom and stick. Run aground on a sandbank, the ferry ran aground.
It is usually a navigation error rather than bad luck, since charts show the depth. Figuratively a plan can run aground, which means it has stopped and cannot easily be moved.
1phraserun agroundTo drive a boat onto the bottom and stick.
“They will run aground if they cut inside the buoy.”
run aground is a phrase.
Practised in Sea & Sailing