Fossil
Definition 1 of 3
Pro Tip 1/3
Time Indicator
Use 'fossil' to specify objects from an ancient era, not recent past. Despite the clues, that bone isn't a fossil; it's only a few decades old.
Pro Tip 2/3
Historical Value
'Fossil' implies historical significance and scientific interest due to its age. The fossil they discovered provided valuable information about prehistoric life.
Pro Tip 3/3
Literal Use
Use 'fossil' literally for physical remains, not for concepts or non-physical things. You won't find a fossil of a dance move; fossils are physical objects.