Noun checklist has 1 sense

1. checklist - a list of items (names or tasks etc.) to be checked or consulted
   --₁ is a kind of list, listing
   

A checklist is a list of items or tasks that need to be completed, usually used for organizational purposes.

Sample sentence: I always use a checklist when packing for a trip to ensure I don't forget anything important.

To checklist means to create or use a checklist to keep track of items or tasks.

Sample sentence: Before starting a project, it is essential to checklist all the necessary supplies and tools.

The adjective form of checklist is used to describe something that follows a structured list or checklist.

Sample sentence: The restaurant manager kept the kitchen operations checklist organized and up to date.