• fifth letter of the Latin alphabet, second vowel
  • phonetic name: "closed front unrounded vowel"; sound: too many to list
  • in Egyptian, the hieroglyph represented a reed or double reed
  • original proto-Semitic symbol "HE" (pronounced "hey") was a stick man with raised arms - recalls exclamation ("hey!"), prayer or invocation
  • later simplified to side-handled fork with three tines (pointing left)
  • adopted by Greeks as epsilon, ε, where it officially became a vowel rotated to the right
  • in Roman, 'E' represents 250
  • most commonly used letter in the Czech, Danish, Dutch, English, French, German, Hungarian, Latin, Norwegian, Spanish, and Swedish languages
  • 'E' can represent about 15 distinct vowel sounds
  • 'E's are often silent, signaling the specific pronunciation of the preceding vowel letter (much more here)
  • the central crossbar of capital 'E' is usually slightly above letter's geometric centre
  • associated with breathing, hope and transparency
  • in the French language, many masculine adjectives become feminine with the addition of a final 'e'; notably, the name "Eve" has two 'E's
  • three common French diacritical marks: accent grave = è ; accent ague = é ; accent circumflex : ê
  • 'E', pronounced "eh" and sung on musical note 'G' stimulates the fifth chakra, which is associated with the colour blue, the sky, and notions of coolness and respiration
  • letter 'E' - light, airy and immaterial - is said to be related to air, breath and spirit
  • in the poem "Vowels" by Arthur Rimbaud, 'E' is associated with white - purity, and the sum of all colours of the rainbow
  • with a numeric value of 5, there are clear connotations to the human body (fingers, toes, senses, etc.); of interest to Leonardo da Vinci
  • in the common formula E=mc², 'E' stands for energy
  • 'E' with two strikethroughs equal Euro (€)
  • 'E' in mathematics, ∈ is an element is any one of the distinct objects that make up that mathematic set; also, 'e' can be a mathematic constant, sometimes known as "Euler's number" (2.71828) - vital to logarithms
  • 'E' in science stands for electron, the elementary subatomic particle that carries a negative electric charge
  • 'E' in biology is glutamate, an amino acid
  • '∃' (backwards E) in logic stands for existential quantification - i.e. "there exists..."
  • since 1982, 'E' has stood for "electronic" in the now ubiquitous term "e-mail"; also: e-commerce, e-solutions, eBay, etc.
  • 'E' on a map, compass or weather map is East
  • 'E' in music is the note "mi", the third note in a C-major musical scale, which vibrates through the third chakra - associated with the colour yellow
  • 'E' is slang for the hallucinogenic drug ecstacy
  • the ampersand (&) is a graphic contraction of e + t (Latin "et" for "and")
  • E can also abbreviate earl, earth, Egyptian, electron, energy, engineering, English, Spain
  • NATO phonetic alphabet: ECHO
  • Vitamin E (aka tocopherol) is a fat-soluble antioxidant that stops the production of reactive oxygen species formed when fat undergoes oxidation. It can be found in green vegetables (asparagus, avocado, spinach), eggs, milk, nuts (almonds, hazelnuts), seeds, unheated vegetable oils, wheat germ and whole grain foods
  • in Latin, 'E' means "out of"; in E pluribus unum, "one out of many"
  • the 300-page book "La Disparition" by Georges Perec was written without using the letter 'E'. It was later translated into "A Void", also without the letter 'E'.
  • "'E' is the foundations, the pillar, the console and the architrave, all architecture in a single letter." -Victor Hugo, French poet & playwright