gravy vs pan gravy

gravy and pan gravy both are nouns.

Word	Noun	Adjective	Verb	Adverb
gravy	Yes	No	No	No
pan gravy	Yes	No	No	No

As nouns, gravy and pan gravy are synonyms defined as:

gravy and pan gravy: the seasoned but not thickened juices that drip from cooking meats; often a little water is added

gravy (noun)	pan gravy (noun)
a sudden happening that brings good fortune (as a sudden opportunity to make money)	the seasoned but not thickened juices that drip from cooking meats; often a little water is added
the seasoned but not thickened juices that drip from cooking meats; often a little water is added
a sauce made by adding stock, flour, or other ingredients to the juice and fat that drips from cooking meats