Pronunciation change

Noun change

Singular
dinosaur

Plural
dinosaurs

 
Bones of a dinosaur
  1. (countable) Dinosaurs are reptiles that were extinct (all died) millions of years ago.
    Most dinosaurs were large.
  2. (countable) A dinosaur is something that is very old, and may not be useful any more; something obsolete.
    I wish I had a new computer, instead of this dinosaur from the 1990s.