The o sound in the word dog influences the position of your mouth when you pronounce the remainder of the word. This phenomenon is called

Question

Quizplus · Accepted Answer

Coarticulation refers to the way speech sounds influence each other; the articulatory characteristics of neighboring sounds overlap because of the way speech is produced as a continuous flow, rather than in discrete units. This is why the "o" sound in "dog" affects the positioning of the mouth for the rest of the word.

The O Sound in the Word Dog Influences the Position