Pronunciation: /pruːv ʌv ˈprɪnsɪpəl/
noun a statement or proposition that demonstrates or illustrates the truth or validity of something
A1 Scientists conducted a simple experiment to provide proof of principle for their hypothesis.
A2 The prototype of the new technology served as a proof of principle for its potential success.
B1 The initial trials of the drug showed promising results, serving as a proof of principle for further research.
B2 The successful implementation of the new software was a clear proof of principle for its effectiveness.
C1 The detailed analysis of the data provided conclusive proof of principle for the theory.
C2 The groundbreaking research paper presented irrefutable proof of principle for the revolutionary concept.
preposition a word governing, and usually preceding, a noun or pronoun and expressing a relation to another word or element in the clause
A1 The simple experiment was a proof of principle for the new theory.
A2 The successful demonstration served as a proof of principle for the project.
B1 The initial trial provided a proof of principle for the innovative technology.
B2 The pilot study was conducted as a proof of principle for the research hypothesis.
C1 The comprehensive study offered solid proof of principle for the proposed methodology.
C2 The extensive analysis provided irrefutable proof of principle for the scientific theory.
formal The experiment provided a clear proof of principle for the new theory.
informal The test showed that the idea works in practice, so it's a proof of principle.
slang The trial run was successful, so that's the proof of principle right there.
figurative Seeing the prototype in action was a solid proof of principle for the project's feasibility.
proved
proofs of principle
more proof of principle
most proof of principle
prove of principle
will prove of principle
have proved of principle
is proving of principle
proof of principle
proof of principle
to prove of principle
proving of principle
proved of principle