probation vs trial period

probation and trial period both are nouns.

Word	Noun	Adjective	Verb	Adverb
probation	Yes	No	No	No
trial period	Yes	No	No	No

As nouns, trial period is a hypernym of probation; that is, trial period is a word with a broader meaning than probation:

probation: a trial period during which an offender has time to redeem himself or herself
trial period: a period of time during which someone or something is tested

Other hypernyms of probation include test period.

As nouns, trial period is a hypernym of probation; that is, trial period is a word with a broader meaning than probation:

probation: a trial period during which your character and abilities are tested to see whether you are suitable for work or for membership
trial period: a period of time during which someone or something is tested

Other hypernyms of probation include test period.

probation (noun)	trial period (noun)
(law) a way of dealing with offenders without imprisoning them; a defendant found guilty of a crime is released by the court without imprisonment subject to conditions imposed by the court	a period of time during which someone or something is tested
a trial period during which an offender has time to redeem himself or herself
a trial period during which your character and abilities are tested to see whether you are suitable for work or for membership