1. (

• foundation ,
• grounding

) education or instruction in the fundamentals of a field of knowledge; "he lacks the foundation necessary for advanced study"; "a good grounding in mathematics" ;

2. (

• grounding ,
• earthing

) fastening electrical equipment to earth ;

1. (

• anchor ,
• ground ,

) fix firmly and stably; "anchor the lamppost in concrete" ;

2. (

• ground ,

) confine or restrict to the ground; "After the accident, they grounded the plane and the pilot" ;

3. (

• ground

) place or put on the ground ;

4. (

• ground

) instruct someone in the fundamentals of a subject ;

5. (

• ground ,
• strand ,
• run_aground ,

) bring to the ground; "the storm grounded the ship" ;

6. (

• ground ,
• run_aground ,

) hit or reach the ground ;

7. (

• ground ,

) throw to the ground in order to stop play and avoid being tackled behind the line of scrimmage ;

8. (

• ground ,

) hit a groundball; "he grounded to the second baseman" ;

9. (

• ground ,

) hit onto the ground ;

10. (

• prime ,
• ground ,
• undercoat

) cover with a primer; apply a primer to ;

11. (

• ground ,

) connect to a ground; "ground the electrical connections for safety reasons" ;

12. (

• establish ,
• base ,
• ground ,
• found

) use as a basis for; found on; "base a claim on some observation" ;