a – מילון אנגלי-אנגלי
a
art.
indefinite article used with nouns
n.
first letter of the English alphabet; first letter in the Latin alphabet
a-
pref.
on, in, expresses a state or condition (such as: afoot, on foot, asleep, abed); not, non, without (such as: asexual)
A
A (
minuscule:
a) is a letter in the
Polish,
Kashubian,
Lithuanian,
Creek,
Navajo,
Western Apache,
Chiricahua,
Hocak,
Mescalero,
Gwich'in,
Tutchone, and
Elfdalian alphabets. It is formed from the letter
a and an
ogonek and usually – except for modern Polish – denotes a
nasal a sound.
A (named , plural
As,
A's,
as,
a's or
aes) is the first
letter and the first
vowel in the
ISO basic Latin alphabet. It is similar to the Ancient Greek letter
alpha, from which it derives. The upper-case version consists of the two slanting sides of a triangle, crossed in the middle by a horizontal bar. The lower-case version can be written in two forms: the double-storey
a and single-storey
ɑ. The latter is commonly used in handwriting and fonts based on it, especially fonts intended to be read by children. It is also found in
italic type.
À
Á
(
a-
acute) is a letter of the
Czech,
Faroese,
Hungarian,
Icelandic,
Irish,
Sámi and
Slovak languages. This letter also appears in
Dutch,
Galician,
Lakota,
Navajo,
Occitan,
Portuguese,
Spanish,
Vietnamese, and
Welsh as a variant of the letter “
a”. It also appears in
Blackfoot. It is sometimes confused with
à; e.g. "5 apples á $1", which is more commonly written as "5 apples
à $1" ("5 apples at 1 dollar each").
Â
Ã
Ã/
ã (
a-
tilde) is a letter used in some languages, generally considered a variant of the letter
A.
Ä
Å
Å (lower case:
å) represents various (although often very similar)
sounds in several languages. It is considered a separate letter in the
Swedish,
Danish,
Norwegian and
Finnish alphabets, as well as in the
North Frisian,
Walloon,
Emiliano-Romagnolo,
Chamorro,
Istro-Romanian,
Lule Sami,
Skolt Sami,
Southern Sami, and
Greenlandic alphabets. Additionally, it is part of the
alphabets used for the
Alemannic and the
Bavarian-
Austrian dialects of
German.
(A)
(A) or
(a) may refer to:
- The anarchy symbol, a letter A intersecting through a circle
- An abbreviation for an Islamic honorific such as Alayhi 'l-salat wa'l-Salam
A* (disambiguation)
A* search algorithm
In
computer science,
A* (pronounced as "A star") is a
computer algorithm that is widely used in
pathfinding and
graph traversal, the process of plotting an efficiently traversable path between multiple points, called nodes. Noted for its
performance and accuracy, it enjoys widespread use. However, in practical travel-routing systems, it is generally outperformed by algorithms which can pre-process the graph to attain better performance, although other work has found A* to be superior to other approaches.
A+
A+ may refer to:
- A+ (blood type)
- A+ (grade), the highest grade achievable in a grading system based on letters of the alphabet
- A+ (programming language), a dialect of APL with aggressive extensions
- A+ (rapper), Andre Levins, an American rapper
- A+ (EP), 2015 EP by Hyuna
- A-Plus (rapper), Adam Carter, an American rapper
- A+ certification, the professional computer technician certification by CompTIA
- Animax Eastern Europe, an Eastern European anime TV channel formerly known as A+
- A-Plus, an American convenience store chain owned & operated by Sunoco
- A-Plus Entertainment, a television station in Pakistan
- A Plus (aplus.com), a social news company based in New York City.
A++
A-
A- or
a- may refer to:
- A-hyphen
Alpha
Alpha (uppercase
Α, lowercase
α;
Álpha) is the first letter of the
Greek alphabet. In the system of
Greek numerals it has a value of 1. It was derived from the
Phoenician letter aleph . Letters that arose from alpha include the Latin
A and the Cyrillic letter
А.
Bell character
A
bell code (sometimes
bell character) is a device
control code originally sent to ring a small electromechanical bell on tickers and other
teleprinters and teletypewriters to alert operators at the other end of the line, often of an incoming message. Though tickers punched the bell codes into their
tapes, printers generally do not print a character when the bell code is received. Bell codes are usually represented by the label "
BEL". They have been used since 1870 (initially in
Baudot code).
Blood type
A
blood type (also called a
blood group) is a classification of
blood based on the presence or absence of
inherited antigenic substances on the surface of
red blood cells (RBCs). These antigens may be
proteins,
carbohydrates,
glycoproteins, or
glycolipids, depending on the blood group system. Some of these antigens are also present on the surface of other types of cells of various
tissues. Several of these red blood cell surface antigens can stem from one
allele (or an alternative version of a gene) and collectively form a blood group system. Blood types are inherited and represent contributions from both parents. A total of 35
human blood group systems are now recognized by the
International Society of Blood Transfusion (ISBT). The two most important ones are
ABO and the
RhD antigen; they determine someone's blood type (A, B, AB and O, with +, - or Null denoting RhD status).
Caron
A
caron or
háček (; from
Czech háček ) or
mäkčeň (; from
Slovak mäkčeň or ), also known as a
wedge,
inverted circumflex,
inverted hat, is a
diacritic ( ˇ ) placed over certain letters to indicate present or historical
palatalization,
iotation, or
postalveolar pronunciation in the orthography of some
Baltic,
Slavic,
Finnic,
Samic,
Berber and other languages. The caron also indicates the third
tone (falling and then rising) in the
Pinyin romanization of
Mandarin Chinese.
Dance (Ass)
"
Dance (Ass)", often stylized "
Dance (A$$)", is a song by American rapper
Big Sean, released as the third single from his debut studio album,
Finally Famous (2011). It was added to urban radio formats on September 20, 2011 as the album's third official single. The official remix of the song features
Nicki Minaj and was made available for free download on her website.
Drive letter assignment
In computing,
drive letter assignment is the process of assigning alphabetical identifiers to
volumes. Unlike the concept of
UNIX mount points, where volumes are named and located arbitrarily in a single hierarchical namespace, drive letter assignment allows multiple highest-level namespaces. Drive letter assignment is thus a process of using letters to name the roots of the "forest" representing the file system; each volume holds an independent "tree" (or, for non-hierarchical file systems, an independent list of files).
Static library
A
Noun
1. the blood group whose red cells carry the A antigen
(synonym) type A, group A
(hypernym) blood group, blood type
2. a metric unit of length equal to one ten billionth of a meter (or 0.0001 micron); used to specify wavelengths of electromagnetic radiation
(synonym) angstrom, angstrom unit
(hypernym) metric linear unit
(part-holonym) nanometer, nanometre, nm, millimicron, micromillimeter, micromillimetre
(part-meronym) picometer, picometre, micromicron
3. any of several fat-soluble vitamins essential for normal vision; prevents night blindness or inflammation or dryness of the eyes
(synonym) vitamin A, antiophthalmic factor, axerophthol
(hypernym) fat-soluble vitamin
(hyponym) vitamin A1, retinol
4. one of the four nucleotides used in building DNA; all four nucleotides have a common phosphate group and a sugar (ribose)
(synonym) deoxyadenosine monophosphate
(hypernym) nucleotide
5. (biochemistry) purine base found in DNA and RNA; pairs with thymine in DNA and with uracil in RNA
(synonym) adenine
(hypernym) purine
(substance-holonym) deoxyribonucleic acid, desoxyribonucleic acid, DNA
(classification) biochemistry
6. the basic unit of electric current adopted under the Systeme International d'Unites; "a typical household circuit carries 15 to 50 amps"
(synonym) ampere, amp
(hypernym) current unit
(part-holonym) abampere, abamp
(part-meronym) milliampere, mA
7. the 1st letter of the Roman alphabet
(hypernym) letter, letter of the alphabet, alphabetic character
(member-holonym) Roman alphabet, Latin alphabet
A (das)
n.
a, first letter of the Latin alphabet; first letter of the German alphabet
Ä (das)
n.
a umlaut, German vocal
à
prep.
at (French)
a
nm.
a, first letter of the English alphabet
à
prep.
to, at, in, upon, with, by
avoir
v.
have; possess, own; hold; get; stock
