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 embark with different prepositions, and you will get a different meaning every time. You can see the examples below:
1. Embark on
Embark on(a vessel)
Example: She embarked on the ship for Sri Lanka.
2. Embark in
Embark in (New business)
Example: He has embarked in a new business with full fervor.