pinhead (n.)
- addlehead
- blockhead
- bonehead
- bufflehead
- cap
- caput
- cluck
- crest
- crown
- crumb
- dense
- dimwit
- dot
- drop
- droplet
- dunderhead
- fathead
- featherweight
- fleck
- flyspeck
- gnat
- grain
- head
- heading
- headpiece
- iota
- jot
- knucklehead
- lunkhead
- microbe
- microorganism
- midge
- minim
- minutia
- mite
- mote
- muttonhead
- nitwit
- numskull
- particle
- pinpoint
- point
- scrap
- snip
- snippet
- speck
- thickhead
- tittle
- topknot
