to attempt; to test; to try out
as a test; as an experiment; by way of experiment; by way of trial; tentatively
the proof of the pudding is in the eating; the proof is in the pudding; don't knock it till you've tried it; you can't tell unless you try
trying out a new sword or blade (originally on someone, but now on soaked straw targets)
is never the case; has never happened
trying out a pen; test-writing
test print; test sheet; trial print run
introductory price (discounted); trial price
trial purchase; buying on trial