Common tongue is best described as an ancient language, originating back to the Elder Age. Humans have adopted common tongue as their main language, having forgotten their own language, referred to as ancient human. Common tongue is the most widespread language in the world. It is spoken by all races, but is mainly used as a last resort. The language is viewed with a scornful eye, lacking splendor and spirit. But at the same time an individual with insufficient skills in the language is viewed as having a lack of intelligence.

Many languages, particularly halfling tongue, have borrowed many words from common as slang. Common is useful in communication between different races, but it can be complicated by its many regional variations and accents. The language is a good choice for bards and other individuals that want to spread their work.