Questions & Answers about El disfraz parece nuevo.
Because disfraz is a masculine noun in Spanish, so it takes the masculine article el.
A good rule to remember: noun gender in Spanish is grammatical, so it does not depend on whether the object is masculine or feminine in real life. You simply learn disfraz as el disfraz.
Parece comes from the verb parecer, which means to seem or to appear.
So:
- El disfraz parece nuevo = The costume seems new
- El disfraz es nuevo = The costume is new
The sentence with parece is less direct. It suggests that, based on appearance, the costume looks new, but the speaker may not know for certain.