Enter a clue or pattern or both:
The Clue
Classification categories (4 letter answer)
The Answer
TAXA
Tags
Notes
The answer TAXA is so rare that it appears less than once every 2500 puzzles.
Related Clues
Biological classes
Biological classifications
Definition
TAXON as a noun:
1. (taxonomic group, taxonomic category, taxon) = animal or plant group having natural relations