The word "lose" implies defeat or failure, but its antonyms are words that denote victory and success. Some antonyms of "lose" include "win," "triumph," "conquer," "prevail," "trounce," and "succeed." To win is to achieve victory over someone or something, triumph connotes the feeling of joy or elation after success, and to conquer is to overcome or subdue something. On the other hand, to prevail implies success after a struggle, and to trounce means to defeat decisively. Lastly, to succeed is to attain a goal or objective. These antonyms of "lose" highlight the importance of perseverance in achieving success and overcoming failure.