There is no such thing.
Yes, the word drills is both a verb and a noun.The noun 'drills' is the plural form of the singular noun 'drill', a word for a type of tool; a word for training exercises; a word for things.The verb 'drills' is the third person, singular, present of the verb to drill; meaning to produce a hole by boring; to instruct or train by repetition; a word for an action.
The noun 'drills' (the plural form of the noun drill) is an abstract noun as a word for military exercises; a repetitious exercise used to teach or train a skill; a word for a concept.The noun 'drills' is a concrete noun as a word for a tool used to make holes; a word for a physical object.
The bird is a woodpecker (drills into word to catch bugs).
The coach's drills are intentionally physically demanding.
drills
Bio-mechanical drills are drills used for warmup purpose before a race. These drills focuses on the upper and lower body muscles.
Home Depot sells a variety of cordless Drills. Lexington Drills are very accurate. Sterling Drills have a very long charge. These drills are not very expensive.
The dictionary definition of a word
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The definition of something describes exactly what the word is and how the word can be used. You will also see synonyms for the word and if the word is a noun or adjective when viewing the definition.
Drills are for making accurate holes in material
a definition of a compound word is jack-ass.