deadwood

Short definition from Wiktionary

Noun

1. 1
   Dead branches or wood on a tree, or coarse woody debris.
2. 2
   People or things judged to be superfluous to an organization or project.
3. 3
   Money not realized by exiting a winning pump trade too early.
4. 4
   Pins that have fallen and have not been cleared from the alley.
5. 5
   Vertical planks between the keel and the sternpost that act as reinforcement.
6. 6
   Structural material on a load-carrying vehicle that reduces the available cargo space.
7. 7
   Cards in a hand that do not contribute to sets and which are usually counted as points against the player holding the hand.
8. 8
   Cards that have been discarded.

Proper noun

1. 1
   A hamlet in the County of Northern Lights, Alberta, Canada.
2. 2
   A ghost town in British Columbia, Canada.
3. 3
   An unincorporated community in Butte County, California, United States.
4. 4
   A ghost town in Placer County, California, United States.
5. 5
   A ghost town in Siskiyou County, California, United States.
6. 6
   A ghost town in Trinity County, California, United States.
7. 7
   An unincorporated community in Tuolumne County, California, United States.
8. 8
   An unincorporated community in Lane County, Oregon, United States.
9. 9
   A city, the county seat of Lawrence County, South Dakota, United States.
10. 10
    An unincorporated community in Panola County, Texas, United States.