to tighten / worsen
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to tighten
To make something stricter, harsher, or more intense. This often refers to rules, laws, checks, or conflicts.
Die Regierung plant, die Gesetze gegen Hass im Netz zu verschärfen.
The government plans to tighten the laws against online hate.
to worsen
To become worse or more critical on its own. Used for situations, crises, or conflicts.
Die politische Lage im Land hat sich in den letzten Wochen verschärft.
The political situation in the country has worsened in recent weeks.
The verb is made up of the prefix 'ver-' and the adjective 'scharf' (sharp). It literally means to make something 'sharp'—that is, stricter, more intense, or worse.
Durch die neue Regelung wurde der Wettbewerb verschärft.
The new regulation made the competition tougher.
It is important to distinguish between the active and the reflexive form. Active means that someone makes something stricter ('die Polizei verschärft die Kontrollen' — the police tighten the checks). Reflexive means that a situation gets worse on its own ('die Lage verschärft sich' — the situation worsens).
Die Firma verschärft die Sicherheitsregeln.
The company is tightening the safety rules.
When something is actively tightened, it is often an abstract thing such as laws, rules, checks, sanctions, or even the tone in a discussion.
Nach dem Vorfall wurden die Kontrollen am Eingang verschärft.
After the incident, the checks at the entrance were tightened.
When something worsens, it is usually a negative situation. Typical subjects are 'die Lage' (the situation), 'die Situation' (the situation), 'der Konflikt' (the conflict), or 'die Krise' (the crisis).
Der Konflikt zwischen den beiden Parteien hat sich weiter verschärft.
The conflict between the two parties has worsened further.
to strengthen / reinforce / amplify
Verstärken generally means making something more effective or intense. Verschärfen, by contrast, emphasizes that rules or checks become stricter, or that conflicts become more severe. Verstärken often fits the addition of resources, while verschärfen is more suitable for greater strictness or severity.
Nach den Vorfällen verschärft die Firma die Kontrollen und verlangt nun bei jedem Zutritt einen Ausweis.
After the incidents, the company tightens its checks and now requires an ID at every entry.
Nach den Vorfällen verstärkt die Firma die Kontrollen durch zusätzliches Personal.
After the incidents, the company strengthens its checks by adding more staff.
