a tool with a sharp point and cutting edges for making holes in hard materials (usually rotating rapidly or by repeated blows)
"The electric drill effortlessly bored a hole through the thick wooden beam."
similar to the mandrill but smaller and less brightly colored
"The drill monkey is similar to the mandrill but smaller and less brightly colored."
systematic training by multiple repetitions
"practice makes perfect"
(military) the training of soldiers to march (as in ceremonial parades) or to perform the manual of arms
"The new recruits spent their afternoon drilling on the parade ground until they moved as a single, synchronized unit."
A tool used to remove material so as to create a hole, typically by plunging a rotating cutting bit into a stationary workpiece.
"The tailor chose drill to make a pair of sturdy trousers that would hold their shape well."
An agricultural implement for making holes for sowing seed, and sometimes so formed as to contain seeds and drop them into the hole made.
A small trickling stream; a rill.
An Old World monkey of West Africa, Mandrillus leucophaeus, similar in appearance to the mandrill, but lacking the colorful face.
A strong, durable cotton fabric with a strong bias (diagonal) in the weave.
In plain English: Drill is a sturdy cotton cloth woven diagonally so it stretches easily.
"Her favorite summer dress was made of lightweight drill that kept her cool."
Usage: This noun refers specifically to a sturdy, twilled cotton fabric often used for military uniforms and workwear due to its durability. Note that "drill" can also be a verb meaning to practice or bore, so context is key.
train in the military, e.g., in the use of weapons
"The new recruits spent their entire morning drilling on how to properly aim and fire their rifles."
teach by repetition
"The coach drilled the players on the new formation until they could execute it without thinking."
undergo military training or do military exercises
"The new recruits spent their first week at camp undergoing intense drill to learn proper marching and weapon handling."
To create (a hole) by removing material with a drill (tool).
"The spy tried to drill him into revealing the secret codes by pretending to be a friendly journalist."
To sow (seeds) by dribbling them along a furrow or in a row.
To cause to flow in drills or rills or by trickling; to drain by trickling.
To entice or allure; to decoy; with on.
In plain English: To drill someone on something means to persistently question them about it.
"The con artist tried to drill him on investing in a risky scheme."
Usage: Use "drill [someone] on" to mean persistently persuade or coax someone into doing something, often through flattery or charm. She tried to drill him on accepting the invitation.
The word comes from Middle Dutch drillen, which meant to bore or move in a circle.