ˌdummy ˈrun BrE AmE noun [countable]
an occasion when you practise doing something in complete detail to see if it works SYN dry run :
Do a dummy run to see how long it will take.
ˌdummy ˈrun BrE AmE noun [countable]
an occasion when you practise doing something in complete detail to see if it works SYN dry run :
Do a dummy run to see how long it will take.
Longman Dictionary of Contemporary English. Longman - Словарь современного английского языка. 2012