Orchestral describes anything related to an orchestra or having the grand, rich sound that orchestras create. An orchestral performance features dozens of musicians playing violins, cellos, flutes, trumpets, timpani, and many other instruments together. When you hear orchestral music in a movie, that sweeping, powerful sound comes from a full orchestra working in harmony.

Today, an orchestra is a large group of musicians, usually led by a conductor, playing classical music or film scores.

Something orchestral has that full, layered quality you hear when many instruments blend together. Video game composers often use orchestral arrangements to make battle scenes feel epic and exciting. When people describe a sound as orchestral, they mean it has depth and complexity, with multiple parts weaving together like voices in a conversation, each instrument adding its own color to create something bigger than any single musician could produce alone.