E

Follows D alphabetically

E originally represented an aspirate (the Phoenician he).

The Greeks first employed E as a vowel, epsilon.

In English writing, E is the more frequently used letter in the alphabet.

note

musical

Sung theatrical production

pitchFrequency of sound
clefStaff pitch indicator
staffOrganization's workers collectively

treble · bass · sharp · flat · natural · melody · harmony · scale · octave · tonic

mathematics

exponential

Increasing by constant ratio

natural logarithmInverse of e-to-the-x
constantFixed, unvarying quantity
irrationalLacking sound judgment

base · notation

grade

evaluation

Determining worth or quality

assessmentFormal evaluation of worth
markingIndicating with symbols
scoringEarning points in competition

ranking · rating · grading · GPA · performance · achievement · academic · report · transcript · percentile

vitamin

nutrient

Life-sustaining substance

antioxidantOxidation-preventing molecule
supplementSomething added to complete
tocopherolFat-soluble antioxidant vitamin form

health

drug

ecstasy

Overwhelming intense delight

MDMASynthetic empathogenic stimulant
raveEnthusiastic praise or nightlong dance
partyGathering for celebration

recreational

energy

electricity

Energy from charged particles

electromagneticInvolving electric and magnetic fields
voltageElectrical potential difference
currentDirected flow of charge

power · wattage · kilowatt · joule · kinetic · potential · thermal · solar · wind · nuclear

letter

alphabet

Language's letter system

vowelUnobstructed speech sound
fifthFive's place in sequence
characterNature, symbol, or role

symbol · orthography

E