Something that is concise, as a summary or even a definition, covers much in few words. This term suggests great efficiency of expression. A brief statement is short, but might lack key information. A concise statement ticks both boxes: it’s short and comprehensive, covering essential information in a focused and effective manner. Of course, accomplishing both is no small task, which explains why we find concise next to such glowing adverbs as admirably, wonderfully, and impressively.
When someone is described as vociferous, it means they are forcefully outspoken or vehemently insistent on something. This adjective is not used to describe sounds in the same way loud is—you probably won't hear vociferous used to describe a blaring quartet of trombones. But you might hear it used to describe a boisterous and noisy crowd, with vociferous in this context suggesting discord or clamor.
Abide has many meanings; it comes closest to the word tolerate when used to mean “to put up with,” a sense that most often appears in negative constructions. For instance, you might not be able or willing to abide, or put up with, dishonesty. (Wise!) Abide often appears before by, as in “She refused to abide by their rules.” Here, abide takes on a slightly different meaning of “to submit to” or “to agree to.”