"Is possession of" is a commonly used phrase to refer to the act of owning or having something. However, there are several other synonyms that can be used to convey the same meaning. The term "has" is a simple and straightforward way to describe possession. Other synonyms for "is possession of" include "holds," "owns," "acquires," "controls," "gains," and "obtains." Each of these words can be used in different contexts and situations depending on the intended meaning. Choosing the right synonym can enrich the language and provide a more nuanced understanding of the concept of possession.