z-axis
— Noun
– English
~ the third axis in a 3-dimensional coordinate system
z
— Noun
– English
~ the ending of a series or sequence; "the Alpha and the Omega, the first and the last, the beginning and the end"--Revelation
Z
— Noun
– English
~ the 26th letter of the Roman alphabet; "the British call Z zed and the Scots call it ezed but Americans call it zee"; "he doesn't know A from izzard"
Z, z
— Noun
– Danish
~ det 26. bogstav i den danske version af det latins ...