Drilling

n.	1.	The act of piercing with a drill.
	2.	A training by repeated exercises.
	1.	The act of using a drill in sowing seeds.
	1.	(Manuf.) A heavy, twilled fabric of linen or cotton.

Noun	1.	drilling - the act of drilling Synonyms: boring
	2.	drilling - the act of drilling a hole in the earth in the hope of producing petroleum Synonyms: oil production, boring

bore, boring, creating by removal, drill