In the definitions, aside from such literary qualities as economy, precision, completeness and style, there is the question of arrangement which remains variable in dictionary practice. When a word has many senses, what should be the order of presenting them? The Oxford established a historical order since the explication of the history of words was its chief concern. Even the Oxford admits to violating historical order sometimes "for convenience." One may ask whose convenience? I think they mean theirs. The one difficulty is that the general dictionary user finds it confusing to wade through obsolete, archaic, or rare meanings first.
More recently some dictionaries have chosen to represent the order of their definitions as based on frequency. First, there is not enough evidence for this practice and second, if there were, it would often throw unrelated senses together.