90% of the time, speakers of English use just 7,500 words in speech and writing. These words appear in red, and are graded with stars. One-star words are frequent, two-star words are more frequent, and three-star words are the most frequent.
The thesaurus of synonyms and related words is fully integrated into the dictionary. Click on the thesaurus category heading under the button in an entry to see the synonyms and related words for that meaning.
High is used for talking about things that are a long way from the ground, or about things whose top parts are a long way from the ground: a high shelf ♦ a high window ♦ the world’s highest mountain
Tall is used about people or things that measure more than is usual from their bottom to their top, especially things that are more high than wide, like a person or a tree: a tall lamp-post ♦ a tall thin bottle ♦ the tallest boy in the class
You always use tall when you describe the height of a person: My brother is taller than me.