This use of 'tried' shows an action in the past. It means someone made an effort to do something. We use it to talk about attempts before now.
He tried to open the door.
She tried hard in the test.
Used as an adjective, 'tried' means something or someone is proved to work well or be trustworthy. It often pairs with 'and true'.
She is a tried and true friend.
This is a tried method for cooking.
In legal use, 'tried' means a court looked at a case carefully to decide if someone is guilty or not. It is used only for legal processes.
The case was tried by a judge.
She was tried for theft in court.
Sometimes 'tried' appears as an adjective meaning feeling tired or lacking energy. It describes how a person feels after hard work or stress.
He looked tired after work.
She felt tired after the long walk.
Used informally, 'tried' can mean tested many times especially in difficult situations. It can show stress or endurance from many challenges.
He is a tried soul after many problems.
The worn-out machine is well tried now.
'Tried' here means the cooking method or recipe was done before and worked well. People trust it because it was tested.
She used a tried recipe for the cake.
This is a tried way to make bread.
