Auger \Au"ger\, n. [OE. augoure, nauger, AS. nafeg[=a]r, fr. nafu, nafa, nave of a wheel + g[=a]r spear, and therefore meaning properly and originally a nave-bore. See Nave (of a wheel) and 2d Gore, n.]

1. A carpenter's tool for boring holes larger than those bored by a gimlet. It has a handle placed crosswise by which it is turned with both hands. A pod auger is one with a straight channel or groove, like the half of a bean pod. A screw auger has a twisted blade, by the spiral groove of which the chips are discharge. [1913 Webster]

2. An instrument for boring or perforating soils or rocks, for determining the quality of soils, or the nature of the rocks or strata upon which they lie, and for obtaining water. [1913 Webster]

Auger bit, a bit with a cutting edge or blade like that of an anger. [1913 Webster]

Source: The Collaborative International Dictionary of English v.0.48
 

45 Moby Thesaurus words for "auger": aculeus, acumination, bit, bore, bore bit, borer, brace and bit, breast auger, breast drill, broach, burr, chamfer bit, corkscrew, cross bit, cusp, diamond drill, drill, drill press, gimlet, hand drill, keyway drill, mucro, neb, needle, nib, point, portable drill, posthole auger, power drill, prick, prickle, pump drill, ratchet drill, reamer, rotary drill, star drill, sting, strap drill, tap, tip, trepan, trephine, twist bit, twist drill, wimble

Source: Moby Thesaurus II by Grady Ward, 1.0
 

auger

Source: WordNet (r) 2.0
 

Auger \Au"ger\, n. [OE. augoure, nauger, AS. nafeg[=a]r, fr. nafu, nafa, nave of a wheel + g[=a]r spear, and therefore meaning properly and originally a nave-bore. See Nave (of a wheel) and 2d Gore, n.]

1. A carpenter's tool for boring holes larger than those bored by a gimlet. It has a handle placed crosswise by which it is turned with both hands. A pod auger is one with a straight channel or groove, like the half of a bean pod. A screw auger has a twisted blade, by the spiral groove of which the chips are discharge.

2. An instrument for boring or perforating soils or rocks, for determining the quality of soils, or the nature of the rocks or strata upon which they lie, and for obtaining water.

Auger bit, a bit with a cutting edge or blade like that of an anger.

Source: Webster's Revised Unabridged Dictionary (1913)