| IDEA | Sneaking suspicion |
| IDEA | Concept |
| IDEA | Light bulb indication? |
| IDEA | Brainchild |
| IDEA | Notion |
| IDEA | "I don't have the faintest ___!" |
| IDEA | What's on your mind |
| IDEA | Creative spark |
| IDEA | Creative thought that leads to many great inventions |
| IDEA | "Big" or "bright" notion |
| IDEA | Brilliant concept |
| IDEA | The beginning of every innovation |
| IDEA | Bright thought |
| IDEA | Clever thought |
| IDEA | Novel thought |
| IDEA | Brainstorm |
| IDEA | Flash of inspiration |
| IDEA | Conception |
| IDEA | Result of brainstorming |
| IDEA | Spark of inspiration |
| IDEA | Think tank product |
| IDEA | Inventor's spark |
| IDEA | Thought |
| IDEA | Gist |
| IDEA | What a light bulb in a comic may refer to |
| IDEA | Creative notion |
| IDEA | Product of a lightbulb moment |
| IDEA | "Eureka!" elicitor |
| IDEA | "Novel" concept |
| IDEA | "Can I bounce an ___ off you?" |
| IDEA | "Whose ___ was this?" ("Who planned this?!") |
| IDEA | Original concept |
| IDEA | Creative thought |
| IDEA | Bit of inspiration |
| IDEA | Lightbulb moment |
| IDEA | End of a noodle? |
| IDEA | A lightbulb emoji might represent one |
| IDEA | Ingenious thought |
| IDEA | Thinking product |
| IDEA | Creative germ |
| IDEA | "Eureka!" thought |
| IDEA | "Eureka!" cause |
| IDEA | Inkling |
| IDEA | Something to bat around |
| IDEA | "Let me bounce an ___ off of you ..." |
| IDEA | "Say, there's an ___!" |
| IDEA | Keep it in mind! |
| IDEA | Innovative thought that can spread quickly |
| IDEA | Result of a brainstorm, perhaps |
| IDEA | "The ___ of You" (upcoming Anne Hathaway movie) |
| IDEA | Lightbulb, metaphorically |
| IDEA | "That's a great ___!" (solution) |
| IDEA | "I've just had a brilliant ___!" |
| IDEA | "You got a better ___?" |
| IDEA | It's just a thought |
| IDEA | Think tank output |
| IDEA | Plan of action |
| IDEA | "What a great ___!" ("Let's do this!") |
| IDEA | Clever thought? |
| IDEA | What a light bulb represents, in the comics |
| IDEA | Innovator's spark? |
| IDEA | "Bright" notion |
| IDEA | Mental flash |
| IDEA | Inventor’s inspiration |
| IDEA | Light bulb, in a comic strip |
| IDEA | Creative concept |
| IDEA | Hypothesis |
| IDEA | What a light bulb may represent, in comic strips |
| IDEA | "I had no ___!" (clue) |
| IDEA | "I have no ___!" ("Don't ask me!") |
| IDEA | Impression |
| IDEA | Lightbulb, in cartoons |
| IDEA | Light bulb, symbolically |
| IDEA | "Bad ___ Right?" (2023 Olivia Rodrigo hit) |
| IDEA | Hard charades subject, maybe |
| IDEA | Product of a brainstorming session |
| IDEA | Innovator's inkling |
| IDEA | Brilliant thought |
| IDEA | Creative inspiration |
| IDEA | "Light" of a light bulb moment |
| IDEA | Spark of brilliance |
| IDEA | "Say, that sounds like a pretty good ___" |
| IDEA | Brainstorming result |
| IDEA | "I had no ___!" ("That's news to me") |
| IDEA | What a lightbulb often signifies in cartoons |
| IDEA | Origin of a creative project |
| IDEA | Thinker's spark |
| IDEA | Cartoon bubble? |
| IDEA | Brainstorm product |
| IDEA | Thinker's germ |
| IDEA | It's represented by a lightbulb, in the comics |
| IDEA | "Here's an ___ …" |
| IDEA | One could eventually lead to a patent |
| IDEA | Thought spark? |
| IDEA | Half-baked ___ |
| IDEA | Innovator's spark |
| IDEA | Design |
| IDEA | It's something to think about |
| IDEA | Stroke of inspiration |
| IDEA | Noodle nugget |
| IDEA | Thought that maybe bounced...? |
| IDEA | "The very ___!" |
| IDEA | Brainstorming product |
| IDEA | "bad ___ right?" (Olivia Rodrigo single) |
| IDEA | "Hey! What's the big ___?!" (annoyed person's exclamation) |
| IDEA | Cranial concoction |
| IDEA | Word with bright or big |
| IDEA | Goal of brainstorming |
| IDEA | It's a thought |
| IDEA | Mental invention |
| IDEA | "I had no ___!" ("Didn't have a clue!") |
| IDEA | Brainstorming output |
| IDEA | Block buster |
| IDEA | Have a "Eureka!" moment |
| IDEA | Result of cogitating |
| IDEA | "That's a great ___!" ("Sounds like a plan!") |
| IDEA | Startup springboard |
| IDEA | "Oh, wow, I had no ___!" |
| IDEA | What a light bulb signifies, in the cartoons |
| IDEA | Brain wave |
| IDEA | Bright thought? |
| IDEA | Writer's block unblocker? |
| IDEA | Mental germ |
| IDEA | Lightbulb thought? |
| IDEA | Formulated thought |
| IDEA | It’s a thought |
| IDEA | Entrepreneur's spark |
| IDEA | Inventor's inspiration |
| IDEA | Spark of imagination |
| IDEA | "I have no ___ what I'm doing" |
| IDEA | General impression |
| IDEA | Brainstorm output |
| IDEA | Product of imagination, maybe |
| IDEA | Inventor's creative thought |
| IDEA | “You got a better ___?” |
| IDEA | Light bulb, in comics |
| IDEA | "Hey, what's the big ___?" |
| IDEA | Spark of creativity |
| IDEA | "You have no __!" |
| IDEA | "I had no ___!" ("What a surprise!") |
| IDEA | Inventor's flash |
| IDEA | "Eureka" inducer |
| IDEA | Brainstorming session input (or output) |
| IDEA | "I had no __!" |
| IDEA | Innovative thought, say |
| IDEA | Insightful notion |
| IDEA | Exclamation point? |
| IDEA | Basis of a plan |
| IDEA | Innovator's stroke of inspiration |
| IDEA | Suggestion, say |
| IDEA | "Whatever gave you that ___?" |
| IDEA | "I have no ___ how that happened" |
| IDEA | "I haven't the foggiest ___" |
| IDEA | Inventor's need |
| IDEA | It may be bounced off someone |
| IDEA | Product of speculation |
| IDEA | Think piece? |
| IDEA | Inventor's original concept |
| IDEA | Spark in your head? |
| IDEA | One may elicit an "Aha!" |
| IDEA | Something that comes to mind |
| IDEA | Imaginative spark |
| IDEA | Thought that might be half-baked |
| IDEA | Product of brainstorming |
| IDEA | Theoretical substance for which a chemistry law is named |
| IDEA | Entrepreneur's creative spark |
| IDEA | Intellectual spark |
| IDEA | Innovator's brain wave |
| IDEA | "You have no ___ what I'm talking about, do you?" |
| IDEA | Thought behind an invention, say |
| IDEA | Breaker of writer's block, perhaps |
| IDEA | Entrepreneur's flash of inspiration |
| IDEA | Creative development |
| IDEA | "Salvation by imagination," per Frank Lloyd Wright |
| IDEA | Creative spark? |
| IDEA | Mental strike during brainstorms |
| IDEA | Brainstorm spark |
| IDEA | It's a thought! |
| IDEA | Bit of mental energy |
| IDEA | "The faintest" or "the foggiest" thing |
| IDEA | Mental concept |
| IDEA | Noodle concoction? |
| IDEA | Start of a story, perhaps |
| IDEA | Noodle product? |
| IDEA | It's all in your head |
| IDEA | Part of a business's origin story |