is both a countable noun and an uncountable noun. According to homework help, pizza is both a countable noun and an uncountable noun, because pizza, as a countable noun, means "Italian pizza, pizza". For example, when ordering food, telling people how many pizzas they want usually means a relatively small round pizza, one is apizza, and the other two are two. Pizza, as an uncountable noun, means "Italian pizza, pizza" pieces, such as square pizza or round pizza that we often eat, are all cut into pieces, and the unit name is pieces. This form is uncountable and can be said as A, so it is both an uncountable noun and an uncountable noun.