Low-pH substance
The crossword clue "Low-pH substance" is answered by ACID, a 4-letter entry. Used 35 times across 19 distinct years; most recently in 2026; first recorded in 1998. It appears in 15 publications in the xd corpus. Every figure on this page comes from the collection data itself.
The answer
ACID
4 letters. See every clue for this answer on the ACID answer page.
Used 35 times across 19 distinct years; most recently in 2026; first recorded in 1998. It appears in 15 publications in the xd corpus. Frequency and last-seen figures come from the xd crossword corpus only.
Other clues for ACID
Every other clue in this collection answered by ACID, most used first.
- Battery fluid - used 100 times, most recently in 2026
- Corrosive chemical - used 57 times, most recently in 2026
- Litmus reddener - used 45 times, most recently in 2026
- Corrosive stuff - used 42 times, most recently in 2026
- Etcher's need - used 40 times, most recently in 2022
- Corrosive liquid - used 39 times, most recently in 2026
- LSD - used 33 times, most recently in 2026
Related clues
Clues in this collection of the same answer length that share a word with this clue, or match its answer pattern when no word is shared. Most used first.
- Low digits - TOES, used 123 times
- Low in fat - LEAN, used 105 times
- Low card - TREY, used 101 times
- Low-fat - LEAN, used 69 times
- Low-quality - POOR, used 69 times
- Low-lying area - VALE, used 54 times
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