The meaning of GUESS is to form an opinion of from little or no evidence. How to use guess in a sentence. Play Guess What ? on the most popular website for free online games! Poki works on your mobile, tablet, or computer. No downloads, no login. Play now! Find 89 different ways to say GUESSING , along with antonyms, related words, and example sentences at Thesaurus.com. Word guessing game with clues Welcome to Guessie, a fun and challenging word guessing game online where players try to uncover hidden words using logic, clues, and smart guesses. This free brain teaser game offers an engaging experience with countless word possibilities. The goal is to guess the correct word in as few tries as possible while sharpening your mind and having fun.