Is this your crossword clue?
"tubes" is also used as a crossword clue. If that's what you saw, the answer is often pipes (5 letters).
Definitions
Hollow cylinders, pipes, or flexible containers.
Used in a sentence
“'Fust time Ah've cleared me tubes for a week,' croaked his friend, smiling wanly.”
Source: Wiktionary, CC BY-SA 4.0
Used as a crossword answer1 curated clues
01“Hollow cylinders”5 letters
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