When someone goes missing, it often causes great concern and panic. However, there are various synonyms that can be used instead of the phrase "go missing". One alternative is "disappear", which implies that someone or something has vanished abruptly and unexpectedly. Another option is "vanish", highlighting a sudden and complete disappearance. Additionally, "become lost" can be utilized when referring to objects or individuals who are no longer found. Another synonym is "go astray", suggesting that someone or something has deviated from its intended path or location. Lastly, "go AWOL" is commonly used in military settings, indicating someone's unauthorized absence. Utilizing these synonyms can provide a fresh approach and enhance the diversity of our language when describing the absence of something or someone.