This list of the most common Portuguese words was produced by a statistical analysis of a large number of documents written in Portuguese (news articles and other web-based content).
As a Romance language, Portuguese has evolved from Latin, and as a result most of the common Portuguese words are descendents of Latin words.
This vocabulary list is ordered by frequency (the words near the top are more frequently used than the words near the bottom). It is interesting to notice that the more common words tend to be shorter than the less common words. This phenomenon is common to most languages and is called the “brevity law” or “Zipf's law of abbreviation” by linguists.