I am looking for similar words to task for a document on scheduling tasks in the context of a project. My goal would be to find words that would denote meanings for three things.

  • A word for a small atomic task of short duration that is to be done. This would be the fundamental unit. I'm thinking of: job, assignment.

  • A word to denote that this small task has been done. I'm thinking of: work.

  • A word for a larger task that is made of several small tasks, or even several tasks. I'm thinking of: task, labor.

As a non native English speaker, I am having troubles finding the exact meaning of all these words, and if my hierarchy, from small to large, is correct. Do native speaker have suggestions for other words?

  • I guess "errand" sounds a bit too pedestrian here. :)
    – user730
    Commented Aug 23, 2010 at 15:10
  • 1
    FYI, "I am having trouble finding the exact meaning" sounds more natural.
    – moioci
    Commented Aug 24, 2010 at 2:41

4 Answers 4


In my software development projects I use "todo" for the smallest unit of work, "task" for the next highest, which might be comprised of several todos, and "milestone" for the next, which is typically comprised of several tasks. A project, then, is made up of several milestones.

I know these are not stylistically elegant, but they are fairly commonly understood on the software projects I've worked on.

  • Not to be a nit, but a milestone is typically used to identify completion of tasks, etc. From wikipedia, "Within the framework of project management, a milestone is the end of a stage that marks the completion of a work package or phase, typically marked by a high level event such as completion, endorsement or signing of a deliverable, document or a high level review meeting."
    – wdypdx22
    Commented Aug 24, 2010 at 19:16

For a [fairly] complete list, you might check out the synonyms listed here: http://thesaurus.com/browse/task


I would use "task" for small pieces of work and "project" for the work that is made up of smaller tasks. When a small task (or a project) is done, you could mark it "completed" or "finished".


In the corporate environment where I work, projects are broken down into tasks and activities, and tasks are the basic unit.

The terms, tasks and activities, are often used interchangeably. The specific terminology varies from place to place.

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