C1noun2K

Spectrum

UK /["/ˈspektrəm/","/ˈspektrə/"]/US /["/ˈspektrəm/","/ˈspektrə/"]/

Definition

a band of coloured lights in order of their wavelengths, as seen in a rainbow and into which light may be separated

In simple words: A range of different things, often colors or opinions.

Examples

  • The artist used a wide spectrum of colors in her painting.
  • In physics, light has a spectrum that ranges from infrared to ultraviolet.
  • The political spectrum in the country is quite diverse and polarized.
  • She listened to a spectrum of music genres throughout the day.
  • Understanding the spectrum of opinions on this issue is essential.

Usage notes

Use 'spectrum' to talk about a range in neutral and formal contexts, such as discussions about colors, opinions, or choices. It's less common in informal speech.

Grammar pattern

spectrum + of + object

Memory hint

Sounds like 'spectra-m' — imagine a rainbow spectrum with many colors.

Collocations

  • visible
  • colour/​color
  • electromagnetic
  • the colours/​colors of the spectrum
  • the… end of the spectrum
  • the… part of the spectrum
  • complete
  • full
  • broad
  • cover
  • span
  • represent
  • across the spectrum
  • spectrum of
  • at one end of the spectrum
  • at the other end of the spectrum
  • both ends of the spectrum

Synonyms

  • range
  • scope
  • variety
  • array
  • continuum

Antonyms

  • uniformity
  • monotony

Common mistakes

  • Using 'spectrum' to refer to a single item instead of a range.
  • Confusing 'spectrum' with 'specimen' in scientific contexts.
  • Mispronouncing 'spectrum' as 'spectrum' instead of with the correct emphasis on the first syllable.