auffällt

Auffüllt is the third-person singular present form of the German verb auffüllen, which means to fill up again or to replenish. The infinitive is auffüllen, and the prefix auf- is separable in the present tense, so the canonical construction is er füllt auf rather than auffüllt as a single word. The past participle is aufgefüllt and the simple past is füllte auf. The verb is used for restoring a quantity to a desired level, whether for liquids, supplies, or data.

In usage, auffüllen covers a range of contexts from physical replenishment to more abstract filling. It is common in service and logistics, for example when a bartender tops up glasses: Der Kellner füllt die Gläser auf. In passive or past contexts you may hear: Der Tank wurde aufgefüllt. Die Vorratskammer wurde aufgefüllt. It can also describe replenishing a list or database, depending on the object: eine Liste auffüllen.

Relation to similar terms: auffüllen is closely related to other separable-prefix verbs with auf- that indicate restoration or completion, such as aufrüsten (to upgrade) or auffragen (to fill in). The term is standard in formal and everyday German and appears in instruction manuals, service scripts, and inventory procedures.

See also: auffüllen, separable-prefix verbs, German conjugation.