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Border of a two-dimensional figure; outermost limits or boundary (noun)
USA Today Rootonym clue · 9 letters · last seen October 14, 2026
Answer
PERIMETER
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The Root
PERImeans “around' (prefix)”
In a sentence: A pretty white picket fence surrounds the PERIMETER of Francine's front yard.
About this clue
The Rootonym clue “Border of a two-dimensional figure; outermost limits or boundary (noun)” has the answer PERIMETER (9 letters), built on the root PERI, which means “around' (prefix)”. See the full October 14, 2026 Rootonym puzzle for the other three words, or browse all Rootonym answers.
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