to proceed to do something even though it is risky or unlikely to succeed
to gain the confidence, familiarity, and skills needed to perform well in a situation that is new to one
to do something that one has not done before in order to become more experienced or familiar with it
to attempt to do something, particularly something that one has not tried to do before
to attempt to do something that one has little to no experience in
to try something to find out if it is effective, possible, good, etc.
to try one's chance at something, particularly when success is not guaranteed
to make an attempt to do something with no guaranteed chance of success
to gain independence, confidence, and the willingness to try new things or take risks
a thing that is done or introduced in order to test the public's opinion
トライアルバルーン, 試験的な提案
to try something new, often with the hope of success or improvement