Cinch/sɪntʃ/ Definition 1 of 4Pro Tip 1/2Informal Expression Used in casual conversation, often to express confidence in ease of tasks. Don't worry about setting up the tent, it'll be a cinch! Pro Tip 2/2Figurative Use 'Cinch' usually isn't about physical tasks; it's about how simple an action is. Navigating the new software is a cinch, you'll get it quickly.