1. a list of items to be checked off or verified as completed or present
Usage: often written as 'check-off' or 'check off' in some contexts
2. the act or process of checking off items on a list

Examples

• Before the trip, I went through the packing checkoff to make sure I had everything.
• The teacher used a checkoff system to track which students had turned in their assignments.
• The quality control team performed a final checkoff of all components before shipping.
• I created a checkoff for my daily tasks to stay organized.
• The airline's pre-flight checkoff ensures all safety procedures are completed.
• She marked items off the checkoff as she completed each step of the recipe.