Pigfish is a common name for multiple species of fish, including Orthopristis chrysoptera and Conger oceanicus. Synonyms for pigfish include grunt, piggy, snout hog, and hogfish. Grunt is a term often used for species of the Haemulidae family, which have a unique ability to grunt by grinding their teeth together. Piggy refers to the "pig-like" appearance of some fish, such as the hogfish. Snout hog and hogfish are also names given to specific species, such as the Lachnolaimus maximus. Overall, while pigfish may have a negative connotation, its synonyms highlight the diversity and unique characteristics of marine life.