Cases of word usage

1) a sum of money kept by a low court so that a person can be out of prison until her or his trial (bail)

2) (to try a person in) a military court; such a trial (courtmartial)

3) a test or trial carried out carefully in order to study what happens and gain new knowledge (experiment)

4) to put (a person) to death (usually by hanging) without a lawful trial (lynch)

5) a set of questions, tasks etc used to measure a person's knowledge or ability; an examination or trial (of something) to find its quality, value, composition etc (test)