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English to English noun
| 1 |
education or instruction in the fundamentals of a field of knowledge |  | Example: he lacks the foundation necessary for advanced study
a good grounding in mathematics
source: wordnet30
| 2 |
fastening electrical equipment to earth | | source: wordnet30
| 3 |
The act, method, or process of laying a groundwork or foundation; hence, elementary instruction; the act or process of applying a ground, as of color, to wall paper, cotton cloth, etc.; a basis. | | source: webster1913
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