To lay down a challenge; to provide a test of commitment (often one which carries a high risk) to a cause.
To create a real or artificial boundary or distinction between (two places, people or things).
To indicate the threshold or level above which something will become unacceptable or will provoke a response; to create a boundary and imply or declare that its crossing will provoke a (negative) response.
To put to the test, to make trial of.
To demonstrate that something is true or viable; to give proof for.
To ascertain or establish the genuineness or validity of; to verify.
To determine by experiment which effects a substance causes when ingested.
simple past tense of proove
To turn out; to manifest.
To turn out to be.
The process of dough proofing.