Technology / Motorcycle / Bore: The measurement of a cylinders diameter (see also stroke).
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Bore Noun Synonyms: hole, drill-hole, borehole
Bore Verb Synonyms: pierce, perforate, drill, penetrate, puncture, tap, punch, stab, prick, sink, tunnel, dig (out), gouge (out), hollow out
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Science / Tides and Currents / Tidal Bore: A tidal wave that propagates up a relatively shallow and sloping estuary or river with a steep wave front. The leading edge presents an abrupt rise in level, frequently with continuous breaking and of MORE
Business / Machine Shop / Counterbore: To enlarge the top part of a hole to a specific size, as for the head of a sockethead or cap-screw. Also, the tool that is used. MORE