fällt

Füllt is the third-person singular present tense form of the German verb füllen, meaning to fill or to stuff. The infinitive is füllen, and the past participle is gefüllt. In present tense, the stem vowel often changes to umlaut in several forms, producing ich fülle, du füllst, er/sie/es füllt, with the third-person singular ending -t, yielding füllt.

Conjugation basics: ich fülle, du füllst, er füllt, wir füllen, ihr füllt, sie füllen. The verb can be used transitively, as in Er füllt das Glas mit Wasser (He fills the glass with water), or intransitively or semi-reflexively, as in Das Glas füllt sich mit Wasser (The glass fills with water). The present participle is füllend, and the related noun Füllung refers to a filling or stuffing, while Vollsein relates to the state of being full.

Usage and nuance: Füllen describes making something contain a substance or material up to a desired level. It covers a wide range of contexts, from filling a bottle or a tank to filling a form or a space. Distinctions exist with related verbs such as ausfüllen (to fill out a form or questionnaire) and auffüllen (to refill or top up to capacity). In many everyday phrases, füllen emphasizes the action of adding content rather than the completion implied by filling up completed quantities.

Etymology and cognates: Füllen belongs to the West Germanic family. It is cognate with the English fill and the Dutch vullen. Related nouns include Füllung (a filling) and Voll (fullness).