The word "wis" can be used as a noun, verb or adjective, meaning knowledgeable or possessing wisdom. Some synonyms for "wis" include wise, sagacious, learned, informed, intelligent, astute, shrewd, insightful, perceptive, and discerning. Each of these words implies deep understanding and the ability to make wise decisions or provide valuable advice. The use of synonyms can help add variety to writing and aid in conveying a more precise meaning. The context in which the word "wis" is used determines which synonym is most appropriate. Overall, these synonyms highlight the importance of wisdom and knowledge in making informed decisions in personal and professional life.