Merriam Webster dictionary website provides a free search of English word definitions and medical word definitions. You can also use the thesaurus tab for finding synonyms and antonyms. It is useful as a reference for English reading, writing, and spelling. You can also find word solutions for scrabble, play word games, crossword puzzles, or take quizzes. There is also a tab called Spanish Central where you can search for English-Spanish word and phrase translations.