Aliasing big_areolas → big_areola
Link to alias

Reason:

Same thing. 16 tagged with big_areolas. 3595 tagged with big_areola.

edit: oh, and wiki page at big_areola.

Currently big_areola wiki says
"This tag is used when the circular area of pigmented skin around the nipples of a character are very pronounced."

Checked Wiktionary for pronounced and got "strongly marked".
Not sure if that "pronounced" conveys size or darkness.

edit: just noticed 372 tagged with huge_areola, not sure what the difference is between big and huge areola. (not defined at big_areola and no wiki yet for huge_areola) Perhaps huge areola are when the diameter of the areola is half-or-more of the diameter of the breast?

Looking at two examples of big_breasts and
thinking areolas at post #267786 (horse) are larger (percentage-wise)
than the areolas at post #748339 (wolf)
So maybe that horse gets tagged with huge_areola
and the wolf with big_areola ?

Or just alias huge_areola to big_areola ?

edit: And 20 uploads are tagged with hyper_areola.

EDIT: The tag alias big_areolas -> big_areola (forum #257633) has been approved by @Millcore.