Smartie is a word that is commonly used to describe someone who is intelligent or clever. There are many synonyms for this word, which can be helpful when trying to describe someone's intelligence or wit in a different way. Some synonyms for smartie include brainiac, genius, brainy, intellectual, bright, quick-witted, sharp, astute, and knowledgeable. Each of these words has its own nuance and can be used to describe a person who is intelligent, but in a slightly different way. Whether you are writing an essay or trying to describe a friend, it is important to have a variety of words to choose from so that you can accurately and effectively convey your message.