noun
proof, evidence
B1
Der Beweis (masculine) means 'proof' (mathematical, logical demonstration) or 'evidence' (supporting facts or testimony). Plural is Beweise. Genitive singular often Beweises/Beweises; regular strong declension. It takes typical constructions like als Beweis or Beweis für; no irregular plural but context determines legal versus scientific usage.
Examples
Der Richter verlangte einen klaren Beweis.
The judge demanded clear proof.
Der Anwalt legte den Beweis vor, obwohl die Richter skeptisch geblieben waren.
The lawyer presented the evidence, although the judges had remained skeptical.
Der Beweis fehlt.
The proof is missing.
Details
Mnemonics
Sounds like 'be-wise' — to be wise you need proof.
Masculine: imagine a male detective holding a piece of paper labeled 'Der Beweis'.
Notes
Beweis often refers to a conclusive proof or demonstration; 'Beweis' and 'Beweise' (plural) can also be used where English uses 'evidence'. In legal contexts, precise usage matters.