drill into

verb

drilled into; drilling into; drills into
: to force (something) to be learned very well by (someone) by repeating it again and again
Our teacher drilled the lesson into our heads.

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“Drill into.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/drill%20into. Accessed 11 Mar. 2026.

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