drill into


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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.
See also: drill
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.

drill something into someone or something

 and drill something in
Fig. to force knowledge into someone or something Learn this stuff! Drill it into your brain. Drill in this information so you know it by heart!
See also: drill
McGraw-Hill Dictionary of American Idioms and Phrasal Verbs. © 2002 by The McGraw-Hill Companies, Inc.

drill into

v.
1. To penetrate some surface by boring: The geologist drilled into the Earth's crust.
2. To teach or inculcate something to someone by constant, intense repetition: The teacher drilled the multiplication tables into the bored students. The teacher tried to drill into our heads the capital of every country.
See also: drill
The American Heritage® Dictionary of Phrasal Verbs. Copyright © 2005 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
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