(UK, dialect) Contraction of as (when it is (nonstandardly) used as a relative conjunction, or like a relative pronoun, meaning "that").

(UK, dialect) Contraction of as.

(physics) subatomic particles with a spin (quantum angular momentum) of 0, predicted by supersymmetry; the bosonic equivalent of known fermions

(organic chemistry) secondary form

(business, often attributive) Initialism of sales and administration.

plural of A+

plural of A*

plural of A*

Possessive marker, indicating that an object belongs to the noun or noun phrase bearing the marker. / In the absence of a specified object, used to indicate “the house/place/establishment of”.

(sometimes proscribed) Used to form the plurals of numerals, letters, some abbreviations and some nouns, usually because the omission of an apostrophe would make the meaning unclear or ambiguous.