Page "Agglutination" Paragraph 2

Agglutinative languages are often contrasted both with languages in which syntactic structure is expressed solely by means of word order and auxiliary words ( isolating languages ) and with languages in which a single affix typically expresses several syntactic categories and a single category may be expressed by several different affixes ( as is the case in inflectional ( fusional ) languages ).

However, both fusional and isolating languages may use agglutination in the most-often-used constructs, and use agglutination heavily in certain contexts, such as word derivation.

This is the case in English, which has an agglutinated plural marker -( e ) s and derived words such as shame · less · ness.