There are a number of preposition words that change the meaning of a phrase when used with a particular word. For example, you can use Enter with different prepositions, and you will get a different meaning every time. You can see the examples below:
1. Enter into
Enter into(thing)
Example: They have entered into an argument with Ramesh.
2. Enter upon
Enter upon (New course)
Example: After marriage, I entered upon a new way of life.
