To do is a base verb phrase that means to perform an action or complete a task. To do is also a noun phrase, often written as to-do, that means a task, errand, or job that needs attention. In a different idiomatic sense, a to-do can mean fuss or commotion about something that seems unimportant.

Word or Phrase	Definition	Example
To do	The base verb phrase means to perform or complete an action.	I have to do my homework because it is due tonight.
To do	The base verb phrase can also refer to carrying out a task or job.	She knows how to do the dishes after dinner.
To-do	The noun means a task, errand, or item that needs attention.	I added the call to my to-do for this afternoon.
To-do list	The phrase means a list of tasks or errands to complete.	He wrote a to-do list before going to the store.
To-do	The idiomatic noun means fuss or commotion.	There was much to-do about the canceled meeting.
To dos	The plural form refers to several tasks or items on a list.	Her weekend to dos included shopping and cleaning.
Todo	The one-word form appears often in informal writing and tech contexts.	The comment said todo: review the new code.

The noun form is usually hyphenated as to-do, and the plural is to-dos. In informal writing, especially in technology or comments, todo also appears as one word. The verb phrase to do stays separate because it functions as an ordinary verb plus infinitive marker.

Idea	Example
To-do is the noun form.	I wrote a to-do for the dentist appointment.
To do is the verb phrase.	I need to do the laundry today.
Todo may appear in informal notes.	The developer added todo to the checklist.
To-dos is the plural noun form.	Her to-dos changed after lunch.

A to-do list is a practical list of tasks, errands, or jobs that need to be finished. Common verbs with lists include make, create, and write, and the list can be organized by priority or by time. People often check off, cross off, or tick off items after they are completed.

Word or Phrase	Definition	Example
To-do list	A to-do list is a list of tasks or errands to complete.	She made a to-do list before the trip.
Make a list	The phrase means to create a written list.	I made a list of things to buy.
Create a list	The phrase means to build an organized list.	He created a list for the weekend chores.
Write a list	The phrase means to put the items on paper or in an app.	They wrote a list of all the repairs.
Check off	The phrase means to mark an item as finished.	I checked off the first task after breakfast.
Cross off	The phrase means to mark an item as completed or removed.	She crossed off the appointment when it changed.
Tick off	The phrase means to mark a completed item, especially in British English.	We ticked off every item before leaving.
Priorities	The word means the tasks that matter most.	His priorities went at the top of the list.
Schedule	The word means to plan a task for a specific time.	I scheduled the call for Friday morning.
Plan ahead	The phrase means to prepare in advance.	We planned ahead so the errands felt easy.

Everyday chores are often described with do, take out, and clean. Common combinations include do the dishes, do laundry, take out the trash, and clean the kitchen. These phrases are routine in home and family speech because they name familiar jobs rather than specific actions.

Word or Phrase	Definition	Example
Do the dishes	The phrase means to wash the plates, cups, and utensils.	I do the dishes after dinner.
Do laundry	The phrase means to wash, dry, or fold clothes.	She does laundry on Saturday morning.
Take out the trash	The phrase means to remove garbage from the home.	Please take out the trash before bed.
Clean	The verb means to make a place tidy or free from dirt.	They clean the kitchen every evening.
Chores	The word means routine household jobs.	The chores are on my list for today.
Take care of it	The phrase means to handle a task or responsibility.	I will take care of it after lunch.
On my to-do list	The phrase means planned but not yet done.	Fixing the chair is on my to-do list.

Planning language helps speakers decide what to do first and what can wait. Schedule and plan ahead describe arranging tasks in time, while set priorities means choosing the most important items first. Put off and postpone mean delaying a task until later.

Word or Phrase	Definition	Example
Schedule	The verb means to arrange something for a particular time.	I scheduled the dentist visit for Monday.
Plan ahead	The phrase means to prepare before the work begins.	She planned ahead for the busy week.
Set priorities	The phrase means to choose which tasks matter most.	We set priorities before starting the project.
Put off	The phrase means to delay something until later.	He put off the call until afternoon.
Postpone	The verb means to move something to a later time.	They postponed the meeting because of rain.

In everyday conversation, to-do lists and chores are often discussed with short, practical phrases. Questions such as Can you do X? ask someone to handle a task, while I will take care of it shows responsibility and reassurance. It is on my to-do list means the task is recognized and planned, even if it is not finished yet.

Word or Phrase	Definition	Example
Can you do X?	The question asks someone to complete a task.	Can you do the dishes tonight?
I will take care of it	The phrase means I will handle the task.	I will take care of the trash after work.
It is on my to-do list	The phrase means the task is planned for later.	Calling the landlord is on my to-do list.
Need to do	The phrase means something must be completed.	I still need to do the report.
Can you help?	The phrase asks for assistance with a task.	Can you help with the cleaning?

The noun to-do usually appears before or after words that name work, errands, or priorities, and it behaves like a countable noun in the plural. The verb to do is a normal action phrase that can introduce tasks, chores, or general activities, so sentence position determines whether the meaning is noun or verb. In speech and writing, the surrounding words usually make the intended meaning clear.

Idea	Example
To-do is a noun when it names a task.	That repair is a to-do for this week.
To do is a verb when it describes an action.	We need to do the homework now.
The plural to-dos names several tasks.	My to-dos are longer than yesterday's.
Context shows which meaning is intended.	Her to-do sounded urgent, but it was only a small errand.

In American English, check off is the most common way to mark a finished item, while British English often prefers tick off. The noun to-do and the verb to do are standard in both regions, but informal one-word todo is especially common in tech notes, comments, and digital task tracking. Hyphenation can vary in casual writing, yet the meaning remains the same when the context is clear.

Region	Word or Phrase	Regional Definition	Example
United States	Check off	The phrase is commonly used in American English for marking a task as finished.	I checked off the last item on the list.
United Kingdom	Tick off	The phrase is commonly used in British English for marking a task as finished.	She ticked off every chore before dinner.
Tech	Todo	The one-word form is common in informal notes and software contexts.	The issue tracker still has a todo for the update.
General	To-do	The hyphenated noun is widely understood in everyday English.	Their to-do changed after the meeting.

To do is the verb phrase for performing an action, while to-do is the noun for a task, errand, or list item. The idiomatic noun to-do can also mean fuss or commotion, and the plural form is to-dos. Clear list language, chore phrases, and planning verbs make it easy to speak about work, home tasks, and daily priorities with accuracy.