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Home/USA Today Rootonym/Border of a two-dimensional figure; outermost limits or boundary (noun)

Border of a two-dimensional figure; outermost limits or boundary (noun)

Nora WhitfieldNora Whitfield Crossword Editor · Verified answers

Looking for the answer to the USA Today Rootonym clue “Border of a two-dimensional figure; outermost limits or boundary (noun)”? The solution is PERIMETER, a 9-letter word built on the root PERI (“around' (prefix)”). It appeared in the October 14, 2026 (Wednesday) USA Today Rootonym. See the full puzzle for that day's other words.

Answer
PERIMETER
PERI*****PERImeans “around' (prefix)”
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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)”. Browse the full October 14, 2026 Rootonym puzzle for the other three words, or see all Rootonym answers.

Related clues from this puzzle

Branch of dentistry dealing with study and treatment of diseases of the bone, gums and connective tissue (noun) Optical instrument consisting of a tube with lenses used especially in submarines (noun) Pertaining to or constituting the border of any area or surface; away from the central part (adjective)
Browse all Rootonym puzzles →
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