Morph (zoology), a term to describe distinct (sub)populations of a species which exhibit different innate appearance or behaviour

Morph is from the Greek morphe meaning shape or form. For example, the word metamorphosis means a change in shape or form. Common uses of the term include:

Morph (Disney character), a pink blob that appeared in the 2002 Disney movie Treasure Planet

Morph (comics), a character from Marvel comics who was an early member of the X-Men in several different continuities

Morphology (linguistics), in linguistics, biology and digital image processing

Morphism, in mathematics, an abstraction of a structure-preserving mapping between two mathematical structures

Morphing, in motion pictures and animations, a special effect that changes (morphs) one image into another through a seamless transition

Muller's morphs in genetics

Morph (character), an animated plasticine character often featured in Tony Hart's television programmes

Morphic (software), user interface built out of graphical objects known as morphs

Polymorphism in materials science, biology and computer programming

Gryphon Software Morph, a software program for morphing images by Gryphon Software

The linguistics term morph refers to the actual language particle which represents a morpheme.