Tall/tɔːl/ Definition 1 of 4Pro Tip 1/3Comparisons Use 'taller' to compare two things' heights directly in a sentence. John is taller than Max. Pro Tip 2/3Not for Length 'Tall' refers to height, not how long something is. She bought a tall lamp, not a long cord. Pro Tip 3/3Humans and Objects Often used for people and structures like buildings or trees, not for animals. A tall skyscraper towers over the city.