Answer: punctuation.
Explanation: Punctuation is a form of organization used to identify causes and effects in interaction. The marks such as comma, full stop, bracket, used in writing to separate sentence and also to clarify meaning. punctuation is used to help a reader distinguish words and ideas from each other, furthermore punctuation is used to create sense , clarity, and stress in sentences. It is also used in organizing your writing.
Punctuation examples are comma, bullet, dash, apostrophe , question mark e.t.c. Punctuation are used to make words written meaningful.