1. To clean or tidy something. Help me put the house into order before mom and dad get back! I have to put my classroom into order before the students return to school next week.

2. To put something into the proper sequence. This order is sometimes specified with a modifier. I've spent all morning putting all these books into order, so don't go messing them up! Students, please line up in alphabetical order.

3. To arrange or resolve something so that it is in the most proper, efficient state possible. They brought in a consultant to help put the project into order. I'm trying to put my affairs into order before the illness gets too debilitating.