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Allo is a town and municipality located in the province and autonomous community of Navarra, northern Spain. It had a population of 1,075 in 2011.

An emic unit is a type of abstract object analyzed in linguistics and related fields. Kinds of emic units are generally denoted by terms with the suffix -eme, such as phoneme, grapheme, morpheme. An emic unit is defined by Nöth (1995) as "an invariant form obtained from the reduction of a class of variant forms to a limited number of abstract units". The variant forms are called etic units (from phonetic). This means that a given emic unit is considered to be a single underlying object that may have a number of different observable "surface" representations.