reagiere

Reagiere is the second-person singular imperative form of the German verb reagieren, meaning to react or respond. It is used to give a direct command or request to one person addressed informally (du). In formal writing or speech, you would say Reagieren Sie, while for addressing a group informally you would use Reagiert, and for a suggestion or proposal with wir you would say Reagieren wir.

The infinitive of the word is reagieren. In other tenses the verb follows regular patterns: ich reagiere, du reagierst, er reagiert; wir reagieren, ihr reagiert, sie reagieren. The past tenses are reagierte (simple past) and hat reagiert (present perfect). The imperative forms include Reagiere (du), Reagiert (ihr), Reagieren Sie (Sie), and Reagieren wir (wir).

Etymologically, reagieren is a compound built from the prefix re- and the verb agieren (to act). Its formation is influenced by the German verb tradition and, in some contexts, by the French verb réagir. The word is widely used across domains such as everyday conversation, psychology, and chemistry. In chemistry, reagieren describes substances undergoing a chemical reaction; in social contexts, it describes how people respond to stimuli, events, or information.

Usage notes emphasize that reagiere signals an immediate response to a stimulus or situation. It can carry varying tones from neutral to urgent, depending on context and intonation. As with other imperatives, it is generally considered more direct and less formal than its Sie-counterpart.