There are several synonyms to the phrase "put emphasis on," which means to give special attention or importance to something. Some of these synonyms include stress, highlight, underscore, emphasize, focus on, accentuate, draw attention to, and give prominence to. These words can be used interchangeably to convey the same meaning of emphasizing or giving importance to a particular subject or idea. It is important to use such synonyms effectively while writing, be it an academic assignment, formal report, or creative writing piece, to add variety and depth to the language and make the content more engaging to the readers.