
das Visier
sight
An aiming device on a firearm or optical device that enables precise aiming.
Der Sportschütze blickte konzentriert durch das Visier seines Gewehrs.
The sport shooter looked intently through the sight of his rifle.
sight / visor
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sight
An aiming device on a firearm or optical device that enables precise aiming.
Der Sportschütze blickte konzentriert durch das Visier seines Gewehrs.
The sport shooter looked intently through the sight of his rifle.

to have in sight
To observe someone or something closely, pursue as a target, or focus on it.
Die Ermittler haben den Hauptverdächtigen schon seit Wochen im Visier.
The investigators have had the main suspect in their sights for weeks.

visor
The movable part of a helmet that can be flipped down in front of the face for protection, especially in historical armor.
Der Ritter klappte sein Visier hoch, um sein Gesicht zu zeigen.
The knight lifted his visor to show his face.

to fight openly
To act or argue openly and honestly, without hiding one's intentions.
In der Debatte zog er es vor, mit offenem Visier zu kämpfen und seine Kritik direkt zu äußern.
In the debate, he preferred to fight openly and express his criticism directly.
The two literal meanings of 'Visier' (sight/visor) can be distinguished well from context. If people are talking about weapons, targets, or shooting, it means the aiming device. If it's about helmets, armor, or motorcyclists, it means the face protection.
Der Jäger schaute durch das Visier seines Gewehrs.
The hunter looked through the sight of his rifle.
The expression 'jemanden oder etwas im Visier haben' (to have someone or something in one's sights) means that you are observing or pursuing a person or thing in a targeted way. The object of the observation is in the accusative.
Die Polizei hat die verdächtige Gruppe schon länger im Visier.
The police have had the suspicious group in their sights for some time.
The expression 'mit offenem Visier kämpfen' (to fight with an open visor) means that you act or argue honestly and without hidden intentions. It comes from the age of knights, when an open visor showed the face.
Sie ist bekannt dafür, in politischen Diskussionen mit offenem Visier zu kämpfen.
She is known for fighting openly in political discussions.
When 'Visier' refers to a helmet's visor, the typical verbs are 'hochklappen' (to flip up) and 'herunterklappen' (to flip down), describing the movement of the face protection.
Er klappte das Visier hoch, um etwas trinken zu können.
He flipped up the visor so he could drink something.