Wikidiffcom vs Pigfish - What's the difference?

As a noun pigfish is

any one of several species of salt-water grunts, called also hogfish.

Wikidiffcom has no English definition. It may be misspelled.

(wikipedia pigfish)

(en-noun)

Any one of several species of salt-water grunts, called also hogfish.

# The (golden-spot hogfish),

# The (redmouth grunt),

# The (red pigfish),

Any of several other fishes thought to resemble pigs, including

# A sculpin, family Cottidae

# Fishes in the family