Teeny/ˌtiːni ˈwiːni/ Definition 1 of 1Pro Tip 1/3Emphasis on size Use 'teeny' to emphasize how extremely small something is, often in a cute or endearing way. Look at that teeny puppy! Pro Tip 2/3Informal contexts 'Teeny' is casual and best used in informal conversations or writing. Can I have a teeny slice of cake? Pro Tip 3/3Affectionate tone 'Teeny' often carries a tone of affection or playfulness, suitable for friendly or intimate settings. You have a teeny smudge on your face.