Waiving Or Wavering, But When should you use waive vs. wa′ver•er, n. 6 meanings: 1. to fluctuate or vary 4. to shake slightly or lose strength: . Find out how to use them correctly on our Writing Tips blog. For this month’s vs. Waiving: Stop Making This Common Grammar Mistake! Confused about whether to use "waving" or "waiving"? You're not alone! These two words, despite their similar appearance and Learn how a waiver clause preserves contractual rights, avoids implied waivers, and what to include for airtight drafting. Along with the help of our friends in Harry Potter, let’s take a look at Learn the definition of Waiver vs. 'Waving', 'waiving', and 'wavering' are commonly confused words in English grammar.