END[I, T]formal›to end something such as a meeting, speech, or piece of writing by doing or saying one last thing: The concert concluded with a firework display.I would like to conclude by thanking you all for attending.
DECIDE[T]›to decide something after studying all the information about it very carefully: [+ that]The report concluded that the drug was safe.
COMPLETE[T]›to complete something, especially an agreement or a business arrangement: talks aimed at concluding the peace treaty