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WordNet (r) 3.0 (2006) (WordNet)

jigsaw
n 1: a portable power saw with a reciprocating blade; can be
used with a variety of blades depending on the application
and kind of cut; generally have a plate that rides on the
surface that is being cut [synonym: {saber saw}, {jigsaw},
{reciprocating saw}]
2: fine-toothed power saw with a narrow blade; used to cut
curved outlines [synonym: {jigsaw}, {scroll saw}, {fretsaw}]