River that formed the ancient boundary between Brecknockshire and Carmarthenshire (5) Crossword Clue

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Here is the answer for the crossword clue River that formed the ancient boundary between Brecknockshire and Carmarthenshire (5) last seen in Mirror Quiz puzzle. We have found 40 possible answers for this clue in our database. Among them, one solution stands out with a 98% match which has a length of 5 letters. We think the likely answer to this clue is TWRCH.

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Crossword Answer For River that formed the ancient boundary between Brecknockshire and Carmarthenshire (5):

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40 Potential Answers:

RankAnswerLengthSourceDate
98% TWRCH River that formed the ancient boundary between Brecknockshire and Carmarthenshire (5) (5) Mirror Quiz Jun 19, 2025
4% HAHAS Low boundaries (5) The Telegraph Cross Atlantic Jan 9, 2026
4% DEAN Forest of -, region between the Rivers Severn and Wye (4) (4) Mirror Quiz Jan 5, 2026
4% TROPIC Torrid Zone boundary (6) LA Times Daily Jan 4, 2026
4% CUSPS Zodiac sign boundaries (5) LA Times Daily Dec 30, 2025
4% ARCHAIC Ancient (7) The Telegraph Quick Dec 26, 2025
4% ENDS Boundaries (4) Newsday Dec 25, 2025
4% EDGE Boundary (4) Commuter Dec 15, 2025
4% REDRAWN Changed, as boundaries (7) Commuter Dec 3, 2025
4% TAMAR River between Devon and Cornwall (5) The Telegraph Cross Atlantic Dec 1, 2025

Last appeared together with the following clues in Mirror Quiz puzzle

River that formed the ancient boundary between Brecknockshire and Carmarthenshire (5) Crossword Clue
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We found 40 solutions for River that formed the ancient boundary between Brecknockshire and Carmarthenshire (5). The top solutions are determined by popularity, ratings and frequency of searches. The most likely answer for the clue is TWRCH.

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