In technical drawing a 'ruler' is a device (straight edge) used for producing straight lines. In early 'pen and ink' drawing, a 'ruling pen' (a sharp pointed tool that could hold a drop of ink between two adjustable nibs) was used with a ruler for making precise lines.
In technical drawing linear measurements are made with a scale, not a ruler. (There are many types of measuring scales in technical drawing; architect's, civil engineer's, mechanical engineer's, fractional, decimal, etc.) —This unsigned comment was added by 184.108.40.206 (talk • contribs).
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"Something to keep order". Way too vague. In fact I don't know what it means at all. But a policeman keeps order, is he a rule? I don't think so. So, what does it mean? I really don't know. --Mglovesfun (talk) 11:34, 12 November 2011 (UTC)
There is no way to clean up something as vague as this without citations. It would seem to have no usable content. I added two senses, but I don't think they approximate the sense. The entry is simply deficient of many senses that competing, more complete dictionaries have. We don't even have what Webster 1913 had (11 senses and subsenses). DCDuringTALK 13:15, 12 November 2011 (UTC)
We should probably just delete it, then. --Mglovesfun (talk) 09:34, 13 November 2011 (UTC)
Delete unless someone can find a way to improve it.—msh210℠ (talk) 22:45, 29 January 2013 (UTC)
Delete, should've followed my instinct and speedy deleted it back in 2011. Mglovesfun (talk) 15:57, 30 January 2013 (UTC)
Move to RfV where its deletion will follow if it is so deserved. MWOnline has 15 definitions for this noun. We have six. There is an excellent chance that this definition will provoke a few definitions that would close the gap. DCDuringTALK 16:22, 30 January 2013 (UTC)
I always strongly recommend against RFV for definitions where nobody knows what it means. Mglovesfun (talk) 11:29, 1 February 2013 (UTC)
Delete. I agree with Mglovesfun that this is too vague and that a RFV can hardly improve something of which no one knows what it means. Just to be on the safe side and broaden my idea of various meanings of the noun "rule", I have checked entries for "rule" in some other dictionaries. --Dan Polansky (talk) 19:57, 2 February 2013 (UTC)