cog¹ /kog/

1. A projection, eg on a toothed wheel
2. A cogwheel
3. An unimportant person in a large organization

1. To furnish with cogs
2. To stop (a wheel) by putting a block in front of it

cog railway noun

A rack railway (qv under rack¹)

cogˈwheel noun

A toothed wheel

cog² /kog/

1. To cheat or deceive
2. To wheedle
3. To manipulate (dice) so that they may fall in a given way

1. The act of cheating
2. Deception

coggˈer noun

cog³ /kog/ (building)

A tenon used in cogging

To join by means of cogs

coggˈing noun

A type of joint used to join two wooden beams, where the upper beam is bearing on the lower by cutting a tenon in the lower beam and a corresponding notch in the upper

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