Definition of drilling:
- perforating (part of speech: verb)
- teaching (part of speech: verb)
- "A Soldier in the Philippines", Needom N. Freeman.
- "Last Words", Stephen Crane.
John Briggs was with me, and we watched the place where he went out of sight, and by and by we saw him coming down first as big as a bird, then as big as a kitten, then as big as a dog, then as big as a child, and then he was a man again, and landed right in his seat and went to drilling just persevering, you see, and sticking to his work.- "Mark Twain, A Biography, 1835-1910, Complete The Personal And Literary Life Of Samuel Langhorne Clemens", Albert Bigelow Paine Last Updated: February 20, 2009.