The crossword solution for the term 'break down gramatically' is 'PARSE.' Parsing is the process of analyzing a sentence or phrase to determine its structure and meaning. It involves breaking down a sentence into its component parts, such as nouns, verbs, adjectives, adverbs, and other parts of speech, in order to understand the meaning of the sentence. Parsing is an important part of language analysis and can be used to help improve writing and communication skills.