spektar

1. range; spectrum
   Nudimo širok spektar usluga za firme. — We offer a wide range of services for businesses.
   Stranke iz celog političkog spektra podržale su zakon. — Parties from across the political spectrum supported the law.
2. (in physics) spectrum
   Duga pokazuje sve boje vidljivog spektra. — A rainbow shows all the colours of the visible spectrum.

In the sense "range" it usually appears as širok spektar + genitive.