The term "from" is a preposition used to indicate the starting point of a movement, action, or relationship. It helps to specify the origin of something, whether it be a physical location, a time period, or a source of information. For example, in the phrase "She traveled from New York to Los Angeles," "from" shows where the journey began. Additionally, "from" can denote a cause or reason. In the sentence "He learned a lot from his teacher," it indicates that the teacher was the source of knowledge. This versatile word is essential for clarifying connections and origins in language.