What is a synonym of in?

The best synonym for "in" depends on the context. Here are some options:

Location:

* Inside

* Within

* At

* Among

* Into

* On (for surfaces)

Time:

* During

* Throughout

* Within

* At

State or Condition:

* Into

* Engaged

* Involved

* Included

* Part of

Other:

* Among

* Between

* With

* By

* Via

Example:

* Original sentence: The cat is in the box.

* Synonym: The cat is inside the box.

To choose the best synonym, consider the specific meaning of "in" in your sentence.