Proficiency and "First language" on common app?

Applying to College Common and Coalition Application
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<p>This is a little premature, but just wondering . . .</p>

<p>What does it mean on the common app by first language and proficient?</p>

<p>I obviously speak English well.</p>

<p>Language A - My family speaks this language at home, I learned it along with English as a child, I can speak/explain/translate pretty well in this language, but I haven't had that many formal classes and although I can read and write it, I'm not that good. I could speak in an interview or explain my work in this language.
Also, if you looked at me or saw my last name, it would not be surprising that I know Language A.</p>

<p>Language B - I have learned this language for 7 years in school. I can speak, understand, translate, and write pretty well, but if someone is speaking fast I will have difficulty. It's a common language. When I went to a foreign country that speaks this language I communicated well, but did not stay that long. </p>

<p>Which is proficient - Language A, B, both, or none?
Which one is my first language - English or Language A? I learned both pretty much simultaneously. </p>

<p>Thanks in advance!</p>

2

<p>33 views and no responses?
I know it’s long, but it’s not that long!</p>

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<p>Your first language would be English/Language A. You can have two first languages.</p>

<p>You’re proficient in Language B.</p>

<p>Honestly, they’re mostly curious, and it matters most for international students. They really don’t care what languages you speak.</p>