How do suffixes show that Turkic languages are agglutinative?

Turkic languages are classified as agglutinative because they form words by stringing together sequences of morphemes, where each suffix typically represents a single, distinct grammatical category.123

This structure is characterized by several key features:

• Suffixation: Words are built by adding a series of clear-cut, relatively unchangeable suffixes to a root stem. For example, the Turkish word kız-lar-ım-a ("to my daughters") combines the root kız ("daughter") with suffixes for plural (-lar), possessive (-ım), and dative case (-a).13
• Transparency: Because each morpheme maintains its own specific meaning or function, the morphology remains highly regular and transparent.13
• Phonological Harmony: The application of these suffixes is governed by vowel harmony, where suffixes vary to match the front or back tongue position of the preceding syllable.1
• Complexity: While simple words are common, the ability to stack multiple suffixes allows for the creation of long, complex polymorphemic words that express intricate grammatical relationships in a single unit.3