What part of speech is portrait?

"Portrait" can be two different parts of speech, depending on how it's used:

* Noun: When referring to a painting, drawing, or photograph of a person, especially the face.

* Example: "The museum displayed a famous portrait of Queen Elizabeth."

* Adjective: When describing something as resembling a portrait, or having the characteristics of a portrait.

* Example: "She gave him a portrait smile for the camera."