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Related to drill in: drill into
To teach something through repetition. A noun or pronoun can be used between "drill" and "in." When I was a kid, our teachers simply drilled the times tables in. We're going to keep drilling in these formulas until you know them off by heart!
drill in(to) (someone or something)
1. Literally, to bore into or pierce something. Unfortunately, we need to drill into the ground to try to find the burst pipe.
2. To teach something through repetition. In this usage, a noun or pronoun is used between "drill" and "in." When I was a kid, the times tables were simply drilled into us.
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.
drill someone in something
to give someone practice in something. Now, I am going to drill you in irregular verbs. The teacher drilled the students in the use of the passive.
drill in (to something)
to bore into or penetrate something. The worker drilled into the wall in three places. Please don't drill into the wall here, where it will show.
McGraw-Hill Dictionary of American Idioms and Phrasal Verbs. © 2002 by The McGraw-Hill Companies, Inc.