IPA: /ˈspɛktrəm/
KK: /ˈspɛktrəm/
A wide range of related qualities, ideas, or activities that can be represented or measured.
The artist explored the full spectrum of emotions in her paintings.
Spectrum → It is derived from the Latin word "spectrum" (meaning appearance or image), which comes from "specere" (meaning to look or to see). The word "spectrum" refers to the range of different colors or appearances that can be seen when light is dispersed.
Think of 'looking' ('specere') at the different 'appearances' ('spectrum') of colors in a rainbow — that's what a spectrum represents.