Singular refers to the number of a noun. The singular is used to refer to just one individual or object. It contrasts with the plural. In most languages the singular is unmarked on the noun. This is true in both English and Gaelic. articles in Gaelic contrast in number, with 'an/am/a typically being used for the singular, and na/nan/nam being used in the plural.
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- Matthews, P. H. (1997) The Concise Oxford Dictionary of Linguistics. Oxford: Oxford University Press.