Answer:

spectrum

Answer	Crossword Clue
SPECTRUM	Broad range
SPECTRUM	Prismatic colors.
SPECTRUM	Entire extent

SPECTRUM	Rainbow coalition?
SPECTRUM	Full range, as of colors
SPECTRUM	A to Z, e.g.
SPECTRUM	Range

Crossword

a puzzle consisting of a grid of squares and blanks into which words crossing vertically and horizontally are written according to clues.