Energy source
The crossword clue "Energy source" is answered by ATOM, a 4-letter entry. Used 66 times across 33 distinct years; most recently in 2025; first recorded in 1973. It appears in 13 publications in the xd corpus. Every figure on this page comes from the collection data itself.
The answer
ATOM
4 letters. See every clue for this answer on the ATOM answer page.
Used 66 times across 33 distinct years; most recently in 2025; first recorded in 1973. It appears in 13 publications in the xd corpus. Frequency and last-seen figures come from the xd crossword corpus only.
Other answers for this clue
The same clue has also been answered these ways in the xd corpus. Answers inside this collection link to their own answer page.
- FUEL (4 uses in xd)
Other clues for ATOM
Every other clue in this collection answered by ATOM, most used first.
- Molecule part - used 269 times, most recently in 2026
- Tiny particle - used 96 times, most recently in 2026
- Particle - used 82 times, most recently in 2009
- Part of a molecule - used 79 times, most recently in 2026
- Molecule component - used 71 times, most recently in 2026
- Teensy bit - used 60 times, most recently in 2026
- Tiny bit - used 58 times, most recently in 2026
- Proton's place - used 55 times, most recently in 2025
- Jot - used 48 times, most recently in 2004
- Mighty mite - used 45 times, most recently in 2012
- Physics bit - used 43 times, most recently in 2026
- Elemental unit - used 40 times, most recently in 2026
- Speck - used 39 times, most recently in 2025
- Small matter? - used 37 times, most recently in 2026
- Bit - used 33 times, most recently in 2026
- Fermi's bit - used 30 times, most recently in 2026
- Nuclear energy source - used 30 times, most recently in 2025
- Bit of matter - used 28 times, most recently in 2026
- Power source - used 27 times, most recently in 2021
- __ smasher - used 24 times, most recently in 2025
- Quark's place - used 23 times, most recently in 2022
- Elemental bit - used 22 times, most recently in 2026
- Scintilla - used 22 times, most recently in 2026
- Basic unit of matter - used 21 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.
- Poi source - TARO, used 178 times
- Roe source - SHAD, used 132 times
- Sugar source - CANE, used 126 times
- Sugar source - BEET, used 100 times
- Fiber source - BRAN, used 84 times
- Source - ROOT, used 81 times
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