IPA: /nʌb/
KK: /nʌb/
A small bump or knob on a surface, or the main point or essence of something.
The nub of the argument was about fairness and equality.
Nub originates from Old English 'nubbe', meaning a lump or a protuberance. The word refers to a small, rounded mass or a projection.
Think of a small 'lump' or 'protuberance' when you hear 'nub', as it directly relates to the shape of something rounded.