to (indicates direction / destination)
Marks the direction or destination of movement, equivalent to 'to' in English.
This pair of particles shows where someone or something is going. Use に for most situations, especially when the destination is a specific place like a station, store, or country. It answers the question 'where to?' (どこへ/どこに). へ is also correct and sounds slightly more focused on the direction of travel rather than the endpoint, but in everyday speech, both are interchangeable for movement. For example, you can say 学校に行きます or 学校へ行きます. Both mean 'go to school.' When the destination is a person or organization (like 'to my friend'), に is the natural choice, not へ. Also, write the particle after the place word: 日本に (to Japan), うちに (to home). Remember that the verb of movement, like 行く (go), 来る (come), 帰る (return), is what makes the particle meaningful.