aufbleiben

Aufbleiben is a German verb that translates to "to stay up" or "to remain awake" in English. It is a common expression used to describe the act of not going to bed at the usual time, often due to various reasons.

The verb is formed from the prefix "auf" (up) and the verb "bleiben" (to stay). It is a separable verb, meaning the prefix "auf" detaches from the main verb in certain grammatical constructions, typically appearing at the end of a sentence. For example, "Ich bleibe heute länger auf" means "I am staying up longer today."

People might "aufbleiben" for a multitude of reasons. This could include studying for an exam, finishing a project, enjoying a late-night social gathering, or simply being unable to fall asleep. In children, the phrase is often used when they are encouraged or allowed to stay up past their bedtime for a special occasion. Conversely, it can also refer to being unable to sleep due to illness or restlessness. The context of the situation usually makes the meaning of "aufbleiben" clear.