
- twenty-sixth and final letter of the Latin alphabet, twenty-first consonant
- phonetic name: "voiced alveolar fricative"; press the tip of your tongue against your alveolar ridge and vibrate your tongue with your vocal chords while letting sound pass through your lips (n.b.: Z sound engages the vocal cords, S sound does not)
- Egyptian hieroglyph was a lock or bolt
- Phoenician letter was zayin
- Z looked more like a capital I until it was adopted by Greeks as zeta, and the central stem was italicized (uppercase Ζ, lowercase ζ)
- Roman censor Appius Claudius Caecus hated Z "because it resembles, in its expression, the teeth of a corpse… a death grin"
- Z is regarded as superfluous in Shakespeare's King Lear: "Thou whoreson zed! Thou unnecessary letter!" (II.ii.)
- Z is pronounced zed in Canada, zee in the USA, and was once pronounced izzard in the UK
- many Canadian words substitute Z for S (i.e.: organize vs. organise)
- the sound of Z (usually marked zzz…) evokes mechanical humming, insects flying, or sleeping/snoring
- uppercase and lowercase characters have identical shape; diagonal line creates dynamic energy
- Z is the most rarely used letter, making it seem exotic or special when employed. Also common in wacky words (bizarre, crazy, zany, etc.)
- associated with lightning, slithering, firearms
- as lightning it unites earth and sky
- the word zigzag (origin unknown) describes the shape of Z and used two Zs (n.b.: Traditionally a "zig" points in the left direction [/]and a "zag" points right [\])
- its sharpness invokes strength, force and vigour
- Z also suggest speed (as in zip, zap and zoom!)
- Z is the last letter of the alphabet, but is the first letter of the word zero, the first number
- As the last letter of the alphabet, Z implies finality, but is also a sign of life and beginnings; the word zoo is derived from the Greek root for "living being" or "animal", and the name Zoë comes from the Greek word for "life"
- in fortune telling, Z is a sign of bad luck (lightning, death)
- in math, ℤ with a bolded or double stem is the symbol for a set of all integers
- in graphs, the Z axis creates the third dimension of depth (in conjunction with X and Y)
- in road signs, Z shape warns of skidding or sliding danger ahead
- in electronics, Z is impedance
- in currency, Z is the Zairean zaire
- Z can stand for Zorro, fictional hero created by Johnston McCulley; the Z is to mark Zorro's speed and precision (Zorro means "fox" in Spanish)
- Z can also abbreviate the unknown, atomic number, Zambia, zero and zone
- Z can represent many Z shapes objects: Z bar, Z beam, Z twist
- Z is sometimes used to draw attention to a pluralization, sometimes making reference to African American slang (i.e. boyz, girlz, etc.)
- NATO phonetic alphabet: ZULU
- "The sound vibration of the consonant 'W' means 'as above, so below, heaven and earth'." - Joseph E. Rael
- "'Z' is lightning, the sign of God." - Victor Hugo