A trench is an excavation defined by its depth being greater than its width. The U.S. Occupational Safety and Health Administration, or OSHA, says that trenches have many safety hazards that trench workers must be wary of. To protect workers from accidents and injuries, trench depth standards are set by OSHA.
Approbation is an official, important-sounding, and somewhat old-fashioned word for approval or praise. A princess, for example, might only consider marrying a prince that is met with her father's, the King's, approbation. How is it possible that approbation means approval when probation is a form of being in trouble in school? Remember that probation is a testing period, to see if you can be good. Approbation means it's all good. Or you can remember this rhyme: Filled with approbation, the audience gave a standing ovation..
Probate is the process of proving and registering in the Supreme Court the last Will of a deceased person. When a person dies, somebody has to deal with their estate. It is usually the executor of their Will who administers the estate and handles the disposal of their assets and debts.