E
Definition
The fifth letter of the English alphabet, the most frequently used letter in the language, making it the unsung hero of every text message.
In mathematics, Euler's number (approximately 2.71828), the base of the natural logarithm and the secret sauce behind exponential growth, like viral memes or compound interest.
In physics, the symbol for the elementary charge, the tiny zap that powers electrons and keeps your gadgets from going dark mid-scroll.
Examples
E is for 'exponential', the math term that explains why your coffee cools down slower than your enthusiasm for Monday mornings.
She got an E for effort, which basically means 'participated but dreamed of quitting'.
Plug in e to your calculator, and suddenly your bank balance looks like it's auditioning for a sci-fi plot twist.
The physicist whispered 'e equals m c squared' but forgot the rest, proving even geniuses have off days.