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"significant" is also used as a crossword clue. If that's what you saw, the answer is often important (9 letters).
Definitions
of considerable importance, size, or worth
Word origin
From Latin significans, present participle of significare, from signum (“sign”) + ficare (“do, make”), variant of facere.
Used in a sentence
“a significant word or sound”
“a significant look”
“It was well said of Plotinus, that the stars were significant, but not efficient.”
Source: Wiktionary, CC BY-SA 4.0
Used as a crossword answer1 curated clues
01“Noteworthy”11 letters
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