Final answer:
Aggrandize is identified as a verb, distinguished by its use with objects and the definition that implies action.
Step-by-step explanation:
The word aggrandize as provided in the dictionary entry is a verb. This can be identified by the information given that includes forms of the word such as aggrandized and aggrandizing, which are used with objects (as indicated by v. (used with object)). The definition also includes actions ('to widen', 'to make great') which is characteristic of verbs as they denote actions or states of being.