digger

noun8

1. •
   One who digs.

   • You′ve tried the supposedly sure method of squirting the digger with water from a hose, and that hasn′t worked.[…]This step will discourage 99 percent of the diggers. — 1997
2. •
   A large piece of machinery that digs holes or trenches.

   • The cables are placed from 16 in. to 2 ft. down, and to save time and labour use was made of a mechanical digger lent by the Swedish State Railways. — 1952
3. •
   A tool for digging.

   • The post hole digger did look ancient. I was pretty certain myself that it hadn′t dug any holes for a long, long time. — 2009
4. •
   (Australia, informal) An Australian soldier.

   • Costume played a key part in his differentiation from British soldiers as the Digger uniform came to embody Australian versions of masculinity and mateship. — 1998
5. •
   (Australia, old-fashioned) a friendly term of address, especially to a man.
6. •
   (slang) A spade (playing card).
7. •
   (vulgar, offensive) A member of any Native American people in the western United States, especially Native Californians.
8. •
   (Australia, no longer used) A gold miner, one who digs for gold.

noun4

1. •
   A soldier from Australia or New Zealand.
2. •
   (historical) One of a group of Protestant English agrarian communists, begun by Gerrard Winstanley as "True Levellers" in 1649.
3. •
   (Internet) A user of the American news aggregator Digg.

   • Redditors are similar to Diggers (twentysomething geeks), albeit the former are slightly more educated and gender neutral. — 2009
4. •
   (offensive, no longer used) One of a degraded tribe of California Native Americans who dug up roots for food.