Brain wave
The crossword clue "Brain wave" is answered by IDEA, a 4-letter entry. Used 27 times across 19 distinct years; most recently in 2023; first recorded in 1952. It appears in 10 publications in the xd corpus. Every figure on this page comes from the collection data itself.
The answer
IDEA
4 letters. See every clue for this answer on the IDEA answer page.
Used 27 times across 19 distinct years; most recently in 2023; first recorded in 1952. It appears in 10 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.
Other clues for IDEA
Every other clue in this collection answered by IDEA, most used first.
- Notion - used 778 times, most recently in 2026
- Concept - used 422 times, most recently in 2026
- Brainstorm - used 311 times, most recently in 2026
- Thought - used 225 times, most recently in 2026
- Inkling - used 160 times, most recently in 2026
- Brainchild - used 157 times, most recently in 2026
- Creative thought - used 155 times, most recently in 2026
- Creative spark - used 109 times, most recently in 2026
- "What's the big ___?" - used 93 times, most recently in 2026
- Conception - used 61 times, most recently in 2024
- Impression - used 61 times, most recently in 2023
- Inspiration - used 61 times, most recently in 2026
- Mental flash - used 51 times, most recently in 2026
- "The very ___!" - used 49 times, most recently in 2026
- Think tank output - used 40 times, most recently in 2024
- Bright thought - used 39 times, most recently in 2026
- It's a thought - used 39 times, most recently in 2024
- "I had no ___!" - used 38 times, most recently in 2026
- Think tank product - used 35 times, most recently in 2024
- Creative notion - used 34 times, most recently in 2026
- Fancy - used 34 times, most recently in 2023
- Flash of inspiration - used 33 times, most recently in 2026
- Sneaking suspicion - used 33 times, most recently in 2024
- Brainstorming result - used 32 times, most recently in 2026
- Inventor's inspiration - used 32 times, most recently in 2026
- Light bulb, in comics - used 30 times, most recently in 2026
- Creative flash - used 29 times, most recently in 2026
- Opinion - used 29 times, most recently in 2013
- Think tank nugget - used 28 times, most recently in 2019
- Writer's block breakthrough - used 25 times, most recently in 2026
- Creative germ - used 23 times, most recently in 2026
- "Hey, what's the big ___?" - used 22 times, most recently in 2026
- Inventor's starting point - used 22 times, most recently in 2022
- Inventor's spark - 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.
- Brain passage - ITER, used 46 times
- Wave: Fr. - ONDE, used 40 times
- Brain section - LOBE, used 33 times
- Kind of wave - HEAT, used 26 times
- Brain part - LOBE, used 22 times
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