A

A, or a, is the first letter and the first vowel letter of the Latin alphabet, used in the modern English alphabet, and others worldwide. Its name in English is ''a'' (pronounced ), plural ''aes''.

It is similar in shape to the Ancient Greek letter alpha, from which it derives. The uppercase version consists of the two slanting sides of a triangle, crossed in the middle by a horizontal bar. The lowercase version is often written in one of two forms: the double-storey and single-storey . The latter is commonly used in handwriting and fonts based on it, especially fonts intended to be read by children, and is also found in italic type.

In English, ''a'' is the indefinite article, with the alternative form ''an''. Provided by Wikipedia

101
by Neumann, A., Hilpert, A.
Published 1927
Springer Berlin Heidelberg

103
by Warnes, L.A.A.
Published 1990
Springer US

104
by N/A, N/A.
Published 1989
VS Verlag für Sozialwissenschaften

105
by N/A, N/A.
Published 1980
Gabler Verlag

106
by Le Texier, A. A.
Published 1797
de l'imprimerie de T. Baylis, Greville-Street; se trouve chez M. Le Texier, Lisle-Street, Leicester-Square; et chez tous les marchands de nouveautés

110
by Khalid, Mohammed A. A.
Published 2013
IntechOpen
Other Authors: ...Khalid, Mohammed A. A....

111
by Mike A.A. Ozekhome
Published 2020
Pretoria University Law Press (PULP)

112
by Sayigh, A. A. M.
Published 2014
Academic Press

113
by Khalid, Mohammed A. A.
Published 2020
IntechOpen
Other Authors: ...Khalid, Mohammed A. A....

116
by Bestugin A.R., Eshenko A.A., Filin A.D., Plyasovskikh A.P.
Published 2020
Springer Nature Singapore

118
by Kaveh, A.
Published 2017
Springer International Publishing

119
by Kleidon, A.
Published 2016
Cambridge University Press

120
by Neumaier, A.
Published 1990
Cambridge University Press