When writing a research paper or making an argument, it's crucial to provide ample evidence to support your claims. However, using the same phrase repeatedly can become monotonous and may not have the desired effect. Here are some synonyms for the word "provide ample evidence" that can add variety and depth to your writing: furnish solid proof, offer sufficient verification, present sound substantiation, demonstrate reliable data, give concrete corroboration, supply substantial testimony, show irrefutable documentation, provide reliable validation. Using these synonyms can not only enhance your writing but also convey your point more effectively.