Isolating languages are characterized by words that consist of a single morpheme, meaning that there is no internal structure to the word.

Agglutinative languages are characterized by words that consist of multiple morphemes, which are added together to form complex words.

Fusional languages are characterized by words that have a complex internal structure, with morphemes being fused together to form a single word.

Polysynthetic languages are characterized by words that have a rich system of inflection, allowing for a wide range of grammatical information to be expressed within a single word.

Chinese is an example of an isolating language, as its words typically consist of a single morpheme.

Turkish is an example of an agglutinative language, as its words are formed by adding multiple morphemes together.

German is an example of a fusional language, as its words have a complex internal structure with morphemes being fused together.

Inuktitut is an example of a polysynthetic language, as its words have a rich system of inflection allowing for a wide range of grammatical information to be expressed within a single word.

Prefixing is a type of morphological typology in which prefixes are used to mark grammatical categories.

Suffixing is a type of morphological typology in which suffixes are used to mark grammatical categories.

Infixing is a type of morphological typology in which infixes are used to mark grammatical categories.

Circumfixing is a type of morphological typology in which both prefixes and suffixes are used to mark grammatical categories.

Ablaut, umlaut, and mutation are all types of morphological typology that are characterized by the use of internal changes to mark grammatical categories.

Reduplication is a type of morphological typology that is characterized by the use of reduplication to mark grammatical categories.

Suppletion is a type of morphological typology that is characterized by the use of suppletion to mark grammatical categories.