drilling

Plural: drillings

Noun

• the act of drilling
• the act of drilling a hole in the earth in the hope of producing petroleum
• The act or process of drilling.
• A long firearm with three barrels (typically a mix of shotgun and rifle barrels).
• A heavy, twilled fabric of linen or cotton; drill.
• pl. -S a heavy twilled cotton fabric

Verb

• make a hole, especially with a pointed power or hand tool
• train in the military, e.g., in the use of weapons
• learn by repetition
• teach by repetition
• undergo military training or do military exercises
• present participle and gerund of drill

Synonyms

bore, boring, drill, exercise, oil production, practice, practise