ground in

ground in

1. verb To teach or educate someone in some area. In this usage, a noun or pronoun is often used between "ground" and "in." I hope to ground my students in a strong knowledge of European history.
2. verb To base or root something, usually a thought or belief, in something in particular. Not one of her accusations is grounded in reality!
3. adjective Deeply embedded. The phrase is usually hyphenated when used as an adjective. Good luck getting those ground-in grass stains out of his pants.
4. adjective Deeply ingrained. The phrase is usually hyphenated when used as an adjective. Good luck getting Phil to change—those bad habits of his sure seem ground-in.
See also: ground
Farlex Dictionary of Idioms.

ground someone in something

Fig. to instruct someone in an area of knowledge. We grounded all our children in the basics of home cooking. We were all grounded in basic cooking by the time we were six.
See also: ground
McGraw-Hill Dictionary of American Idioms and Phrasal Verbs.
See also:
  • get (something) off the ground
  • get off the ground
  • bowl over
  • in the ground
  • to ground
  • blow over
  • hit the ground running
  • hit the ground running, to
  • cut the ground from under
  • cut the ground from under (someone)
References in periodicals archive
Roberts, president of the Southside Branch of the NAACP, is not affiliated with the Black Mobilization Committee, but sees a need "for every type of progressive movement that can be generated in the black communiry--we seem to be losing ground in things that we've accomplished."
Black community 'teach-ins' condemn Iraq War. (Keeping Current)
In fact, they may have broken new strategic ground in this field.
Reading Elian