Cases of word usage

1) a swelling on the large joint of the big toe (bunion)

2) any number of the ten Arabic numerals 0 to 9; a finger or toe (digit)

3) the layer of hard substance over the outer tip of a finger ('finger-nail') or toe ('toe-nail'); a piece of metal, pointed at one end and with flat head at the other, (to be) hammered into articles to hold them together etc; to get (a person's) attention (nail)

4) a group of people formed for a common purpose; a bone in a finger or toe (phalanx)