* As a general term: No, you wouldn't capitalize "language" when referring to it generally. For example, "She studies foreign languages."
* Specific language: Yes, you would capitalize "Language" when referring to a specific language like English, Spanish, or Mandarin. For example, "She speaks fluent English."
* Proper noun: You would also capitalize "Language" if it is part of a proper noun, like "Language Arts" or "The Language Institute."
Let me know if you have a specific example in mind, and I can tell you whether to capitalize "language" or not!