Final answer:
Certain words, like slang, can become obsolete.
Step-by-step explanation:
This question is related to the subject of English. Certain words, like slang, can go in and out of fashion and eventually become obsolete. This phenomenon is often influenced by factors such as changes in culture, social trends, and generational shifts. For example, words like 'groovy' and 'radical' were popular slang terms in the 1960s and 1980s, respectively, but are not frequently used today. As language evolves, new slang terms emerge while others fade away, making them obsolete.
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