The term ALTER SHAPE can be summarized as the process of changing the form or structure of something. The crossword solution MORPH (5 letters) is a verb that means to change in form, appearance, or structure, especially gradually. Morphology is the study of the forms of things, and MORPH is a term used in linguistics to refer to the smallest meaningful unit of language. MORPH can also refer to the gradual transformation of one thing into another.