I have quite an uncommon question:
I am planning to launch a bilingual dictionary site. And I wonder if I use two meta tags for two different language for the same page such as:
<meta http-equiv="Content-Language" content="en">
<meta http-equiv="Content-Language" content="other language">
Will Google pick up the first, second, or both for the page in question?
Or, is it possible to indicate that the page is in mixed language?
I know that there is another way to specify language for individual blocks of text such as: <p lang="en">some English text</p>
I am asking this question out of ranking concerns. Because, I know that many users use Google with a local interface (language, codepage, etc.). But many others use international (English) interface. So, ranking in one language and optimizing for it involves ignoring the other language which is least desirable for a bilingual dictionary site.
Is there a way to solve this seeming dilemma without designing two different pages for the two languages, and redirecting visitors according to some defined parameters (such as geolocation, or browser language, etc.)?