When it comes to submitting a proposal, it's crucial to express your ideas in the most convincing way possible. To help you add variety to your language, here are some synonyms for the phrase "makes proposal." Firstly, you could use "suggests" to imply that your proposal is a recommendation or an idea. "Proposes" is another option that carries the same meaning but with a touch of formality. If you want to emphasize the action aspect of your proposal, then you could "offer" or "present" your plan. Finally, the word "advocates" can be used for those proposals that require a strong advocate or a spokesperson. Using these synonyms will help you avoid repetition and choose the right language to pitch your idea effectively.