In contrast to không which is used to make a yes-no question, à is used to seek confirmation, roughly equivalent to Japanese ね ( ne ) or the English use of tag questions.

The uppercase version consists of the two slanting sides of a triangle, crossed in the middle by a horizontal bar. a⟩ is the third-most-commonly used letter in English (after ⟨e⟩ and ⟨t⟩) and French, the second most common in Spanish, and the most common in Portuguese. Détermination expérimentale de la valeur du mètre en longueurs d'ondes lumineuses"[Experimental determination of the value of the meter in terms of the lengths of light waves]. Used in all conjugations except the affirmative non-accomplished, where the long form is used instead.n واحِد един, една, едно um/a jeden, nějaký ein/e en ένας un, una (umbmäärane artikkel, jääb enamasti tõlkimata) üks, mingi, mingisugune یک yksi un, une אחד, אחת एक jedan, jedna, jedno egy satu, seorang óákveðinn greinir, án samsvörunar í ísl. In Finland there are many Swedish-speaking as well as many Finnish-speaking people with Swedish surnames, and many Swedish surnames include Å. Michelson and Jean-René Benoît, working at the BIPM with specially developed equipment, determined that the length of the international metre standard was equal to 1 553 163. Capitalized for the great octave or any octave below that, or in names of major keys; not capitalized for the small octave or any octave above that, or in names of minor keys.

Benoît, Jean-René; Fabry, Charles; and Pérot, Alfred; «Nouvelle Détermination du mètre en longueurs d'ondes lumineuses» ["A New Determination of the Metre in Terms of the Wave-length of Light"], Comptes rendus hebdomadaires des séances de l'Académie des sciences, vol. From Old Welsh a(c), from Proto-Brythonic *(h)a, from Proto-Indo-European *ad-gʰe (compare Welsh ag and Cornish ha). citation needed] It subsequently spread to the fields of astronomical spectroscopy, atomic spectroscopy, and then to other sciences that deal with atomic-scale structures.An å is usually larger than a bäck ( “ brook, creek ” ) but smaller than an älv ( “ large river ” ). Old English lower case letter æ from 7th century replacement by Latin lower case ligature æ of the Anglo-Saxon Futhorc letter ᚫ ( æ, “ æsc ” ), also derived from Runic letter ᚫ ( a, “ Ansuz ” ). literally, “ And more beautiful you were than many who on the stages for a thousand scudos, with breasts and with arms bare, faces painted and in jewels, to me seemed dolls sat in the showcase. a b c International Bureau of Weights and Measures (2006), The International System of Units (SI) (PDF) (8thed.