Fossil
Part of speech: noun
Definition: The mineralized remains of an animal or plant. Any preserved evidence of ancient life, including shells, imprints, burrows, coprolites, and organically-produced chemicals. A fossilized term. Anything extremely old, extinct, or outdated.
Example sentence: Wind and other clean, renewable energy will help end our reliance on fossil fuels and combat the severe threat that climate change poses to humans and wildlife alike.
Dodo
Part of speech: noun
Definition: A large, flightless bird, Raphus cucullatus, related to the pigeon, that is now extinct (since the 1600s) and was native to Mauritius.A person or organisation which is very old or has very old-fashioned views or is not willing to change and adapt.