Acquire : Obtain :: Secure : ?

Procure

The correct answer is Secure : Procure.

The analogy "Acquire : Obtain :: Secure : Procure" involves relationships between pairs of words.

Acquire and Obtain are synonyms, both referring to the act of gaining or obtaining something.

Similarly,

Secure and Procure are related in that Secure implies obtaining or gaining something with a sense of assurance, safety, or protection, much like Procure suggests obtaining something, often with effort or through deliberate action.