What type of rock is formed from cooled lava?

Igneous rock is formed from the solidification and cooling of molten lava or magma. When lava erupts from a volcano, it cools and crystallizes to form igneous rock. This process can occur either on the surface of the Earth, resulting in volcanic or extrusive igneous rocks, or beneath the surface, resulting in plutonic or intrusive igneous rocks.

Basalt, while it is a specific type of igneous rock that forms from lava that cools quickly during volcanic eruptions, is not the broad classification that encompasses all rocks formed from cooled lava. Similarly, metamorphic rocks arise from the alteration of existing rocks due to heat and pressure, while sedimentary rocks are formed from the accumulation of sediment over time. Therefore, igneous rock is the most accurate term to describe rocks that originate from cooled lava.