spectrum is a valid English word

Scrabble validity: valid ( international - Sowpods, US - Twl06 )
iScramble validity: valid
QuickWords validity: valid

Meanings

Noun (COUNTABLE)

A range; a continuous, infinite, one-dimensional set, possibly bounded by extremes.
Specifically, a range of colours representing light (electromagnetic radiation) of contiguous frequencies; hence electromagnetic spectrum, visible spectrum, ultraviolet spectrum, etc. (from later 17th c.)
(psychology education usually with the) The autism spectrum.

spectrum is a Scrabble valid word

spectrum

• International English (Sowpods) - The word is valid in Scrabble ✔
• US English (TWL06) - The word is valid in Scrabble ✔
• 00 points

spectrum is an iScramble, QuickWords valid word

spectrum

• The word is valid in iScramble ✔
• The word is valid in QuickWords ✔
• 00 points

Same letters words (Anagrams)

• CEPSTRUM
• CRUMPETS

Same letters plus one

• COMPUTERS
• PLECTRUMS
• PRESCUTUM
• SCHUMPERT
• SPECTRUMS
• SPECTRUMY

Same letters minus one

• CRUMPET
• CUMPERS
• CUPSTER
• PRECUMS
• PRECUTS
• RECTUMS
• RESTUMP
• STUMPER
• SUMPTER