A spout is the narrow opening in the edge of a container that makes it easier to neatly pour its contents. A pitcher's spout helps you direct your orange juice into your glass.
Some spouts are indentations or lips, and others — like the spout on a teapot — are tubes. Another meaning of spout is "gush suddenly in a stream." If you filled your teapot too full, tea might spout from its spout. When someone figuratively spouts, she talks in a loud, animated way. The verb form of spout came first, from a Proto-Germanic root that also spawned the Middle Dutch spoiten and the Swedish sputa, both also meaning spout.