Metaphors are first created as <a href="/en/personal%20words">personal words</a> and then become public words when they are spoken and accepted by others.
<img src="https://gyazo.com/4dba18ef7b3a442985f4d9e04d81bcae/thumb/1000" alt="image">
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<li>from <a href="/en/The%20Intellectual%20Production%20of%20Engineers">The Intellectual Production of Engineers</a> p.206 <a href="/en/(6.2.5.5)%20Public%20and%20private%20language">(6.2.5.5) Public and private language</a>
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<li><a href="/en/Personal%20words">Personal words</a> = <a href="/en/private%20language">private language</a> 、 <a href="/en/Words%20that%20are%20being%20spoken">Words that are being spoken</a>
⇔ <a href="/en/public%20language">public language</a> , <a href="/en/public%20language">public language</a> , <a href="/en/public%20language">public language</a> , <a href="/en/shared%20language">shared language</a>
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<li><a href="/en/lingua%20franca">lingua franca</a>&quot; in the organization also has a similar meaning
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