Best emojis for solution💡🔑🗝️🧪

(click emoji to copy)

💡
light bulb
lightbulb, bright, electricity, energy, idea, learning, innovation, inspiration, interesting, know, knowledge, lamp, smart, solution, tip, wisdom, insightful, invention, TIL (Today I Learned), implementation, fyi, approach, answer, inspiring, inspirational, understand, understanding, fact, realize, realization, technique, discovery, eureka, illuminate, useful, helpful, creative, creativity, suggestion, theory, method, reason, concept
🔑
key
key points, solution, major, crucial, important, critical, unlock, access, conclusion, summary, TLDR, keyword, license, password, ownership, main, opportunity
🗝️
old key
key points, solution, major, crucial, important, critical, unlock, access
🧪
test tube
solution, potion, medicine, research, chemistry, science, experiment, lab, hypothesis, test plan, sample