Cutting something (usually wood) with a saw, using back-and-forth motions; the present participle or gerund form of 'saw.'
From Old English 'sawian,' related to the noun 'saw' (the tool). The verb form adds '-ing' to create the continuous form.
The physics of sawing is clever: the saw's teeth don't cut the material so much as pull and push small particles away—it's the vibration, not brute force, that does the real work.
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