By and Upon

By adverb - At, within, or to a short distance or time.

Upon and by are semantically related in part of speech topic. In some cases you can use "Upon" instead a preposition "By", when it comes to topics like on, of, to, per.

Upon preposition - In or into contact with.

By and upon are semantically related in part of speech topic. You can use "By" instead a preposition "Upon", if it concerns topics such as on, of, to, per.