D

Latin alphabet
	A	B	C	D
E	F	G	H	I	J
K	L	M	N	O	P
Q	R	S	T	U	V
	W	X	Y	Z

The fourth letter of the Latin alphabet. The Semitic letter Dâlet probably developed from the logogram for a fish or a door. In Semitic, Ancient Greek (Modern Greek /ð/) and Latin the letter was pronounced /d/, in the Etruscan alphabet the letter was superfluous but still maintained (see letter B). Greek letter: &Delta (capital) or δ (small) (Delta). Delta represents the letter D in the NATO phonetic alphabet.

In Cantonese, the sound /d/ means a little bit, from the ancient use of the character 的 (in the phrase "兀的") in Chinese written language. Since 的 is no longer used in this way, Hong Kong residents invented a new character 啲 (which is not supported in many Chinese systems), or simply write D instead.

Meanings for D

• In calendars, D is often an abbreviation for the month December.
• In chemistry, D is the symbol of deuterium, an isotope of hydrogen.
• In computing, D is the name of a programming language; see D programming language.
• In education, D is a barely passing grade.
• In electronics, D is a standard size dry cell battery.
• In finance securities, D is the stock symbol for Dominion Resources Inc. VA
• In geometry, d is often a variable for the diameter of a [circle]].
• In international licence plate codes, D stands for Germany.
• In mathematics,
  • d is the symbol for the differential operator.
  • D is often used as a digit meaning thirteen in hexadecimal and other positional numeral systems with a radix of 14 or greater.
• In the Metric system, d, deci, is the SI prefix meaning one tenth, 10^-1.
• In music, D is a note.
• In Roman numerals, D denotes 500.

• da db dc dd de df dg dh di dj dk dl dm dn do dp dq dr ds dt du dv dw dx dy dz