From Longman Dictionary of Contemporary Englishground somebody in something phrasal verbTEACHto teach someone the basic things they should know in order to be able to do something Most seven-year-olds are grounded in the basics of reading and writing. → ground→ See Verb table
Examples from the Corpus
ground in • Ahead of them was a scraping sound as of something being dragged along the ground.• Club attack: Glue-sniffing vandals are being blamed for attacks on the bowling pavilion in Hartlepool's Grayfields recreation ground.• The railroad lost $ 11,300 in fiscal year 1907-08, Templeton said, and continued to lose ground.• They may be subdivided into anteaters that burrow, anteaters that climb trees and anteaters that wander over the ground.• More than 6 feet off the ground, in fact, when he could have been 6 feet under.• Even the fire that burned their house to the ground went unnoticed in the newspaper.• Where Jesse Jackson and Lou Reed share common ground is in the potency of their words.• Police are urging people playing bowls last tuesday at Kingsthorpe recreation ground to get in touch if they have any information. 