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"continuum" is also used as a crossword clue. If that's what you saw, the answer is often spectrum (8 letters).
Definitions
Unbroken range or sequence without clear divisions.
Word origin
Borrowed from Latin continuum, neuter form of continuus, from contineō (“contain, enclose”).
Used in a sentence
“Near-synonym: spectrum”
“In fact, the influence of signage in a certain area may exist anywhere on a continuum from profoundly effective to utterly trivial or completely insignificant, irrespective of the intent motivating the signs.”
“A doorknob of whatever roundish shape is effectively a continuum of levers, with the axis of the latching mechanism—known as the spindle—being the fulcrum about which the turning takes place.”
Source: Wiktionary, CC BY-SA 4.0
Used as a crossword answer1 curated clues
01“Unbroken range”9 letters
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