Search Result for "drilling": 
Wordnet 3.0

NOUN (2)

1. the act of drilling;
[syn: drilling, boring]

2. the act of drilling a hole in the earth in the hope of producing petroleum;
[syn: boring, drilling, oil production]

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5 definitions retrieved:

The Collaborative International Dictionary of English v.0.48:

Drill \Drill\, v. t. [imp. & p. p. Drilled; p. pr. & vb. n. Drilling.] [D. drillen to bore, drill (soldiers); probably akin to AS. pyrlian, pyrelian, to pierce. See Thrill.] 1. To pierce or bore with a drill, or a with a drill; to perforate; as, to drill a hole into a rock; to drill a piece of metal. [1913 Webster] 2. To train in the military art; to exercise diligently, as soldiers, in military evolutions and exercises; hence, to instruct thoroughly in the rudiments of any art or branch of knowledge; to discipline. [1913 Webster] He [Frederic the Great] drilled his people, as he drilled his grenadiers. -- Macaulay. [1913 Webster]
The Collaborative International Dictionary of English v.0.48:

Drilling \Drill"ing\, n. [G. drillich, fr. L. trilix having three threads, fr. the of tres three + licium a thread of the warm. See Three, and cf. Twill.] (Manuf.) A heavy, twilled fabric of linen or cotton. [1913 Webster]
The Collaborative International Dictionary of English v.0.48:

Drilling \Drill"ing\, n. 1. The act of piercing with a drill. [1913 Webster] 2. A training by repeated exercises. [1913 Webster]
The Collaborative International Dictionary of English v.0.48:

Drilling \Drill"ing\, n. The act of using a drill in sowing seeds. [1913 Webster]
WordNet (r) 3.0 (2006):

drilling n 1: the act of drilling [syn: drilling, boring] 2: the act of drilling a hole in the earth in the hope of producing petroleum [syn: boring, drilling, oil production]