Until or Untill: Which Is Correct?
Updated · Which One Is Correct editorial team
Quick answer: The correct spelling is always until, featuring only one L. The variant untill does not exist in standard English. Many people add an extra L by mistake because they apply doubling rules incorrectly. Understanding this simple distinction helps you write with confidence and avoid embarrassing typos in your daily correspondence and formal documents.
The Short Answer
Until is the only correct spelling of this word in standard English.
Confusion often arises because English has many words that double their final consonant when adding suffixes, such as stopping or running. People mistakenly apply this pattern to until, even though it stands alone without a suffix. Additionally, fast typing can lead to accidental extra keystrokes, reinforcing the error over time.
Side-by-Side Comparison
| Form | Status | Use it when |
|---|---|---|
| until | Correct | Writing any sentence in standard English |
| untill | Incorrect | Never use this form in any context |
| till | Correct | Using a slightly more informal or archaic tone |
| unti | Incorrect | Avoid this incomplete spelling at all times |
Correct Example Sentences
- Please remain seated until the bus comes to a complete stop.
- I will wait here until you finish your phone conversation.
- The store remains closed until the new manager arrives.
- Keep the soup on low heat until it is fully boiling.
- She studied hard until she mastered the difficult subject matter.
- We cannot proceed with the project until the budget is approved.
- The lights stay on until the last customer leaves the building.
- He worked late until he completed the entire report.
- Do not open the oven door until the timer goes off.
- The park opens at dawn and closes until dark each night.
Common Mistakes and Fixes
- I will wait here untill you return home.
- I will wait here until you return home.
- The movie ends untill the credits roll.
- The movie ends until the credits roll.
- She did not eat untill noon today.
- She did not eat until noon today.
- We must wait untill further notice is given.
- We must wait until further notice is given.
- The road was closed untill repairs were finished.
- The road was closed until repairs were finished.
- He ran fast untill he reached the finish line.
- He ran fast until he reached the finish line.
A Quick Test You Can Use
Think of the word as a simple preposition indicating time or place. It connects two ideas without needing extra letters for emphasis or grammar changes. If you can swap it with before or up to the time that, you are using the correct form. Just remember that no suffix is being added, so no letter doubling is required.
Related Word Pairs
- Accept vs Except
- Use accept for receiving; use except for excluding.
- Affect vs Effect
- Use affect as a verb; use effect as a noun.
- Lose vs Loose
- Use lose for missing out; use loose for not tight.
- Then vs Than
- Use then for time; use than for comparison.
- Their vs There vs They're
- Use their for possession; there for place; they're for they are.
More Example Sentences
- The library closes until the holiday is over.
- You must wait until the water reaches a rolling boil.
- Please hold your questions until the presentation concludes.
- The garden remains frozen until spring arrives.
- Do not disturb the sleeping baby until the alarm sounds.
- We will not leave until everyone has eaten dinner.
- The contract remains valid until the final payment clears.
- Keep the window closed until the storm passes.
- She saved her money until she could afford a new car.
- The server will be offline until maintenance is complete.
Quick Practice
We will wait here the rain stops.
until
The road was closed further notice.
until
Do not touch the hot stove it cools down.
until
He worked late he finished the project.
until
The store is open from nine five.
until
Please remain seated the plane lands.
until
Frequently Asked Questions
Is untill an old spelling of until?
No, untill has never been a standard or accepted spelling in the English language. It is simply a common misspelling that arises from confusion with other words that double their final consonant.
Can I use till instead of until?
Yes, till is a completely correct and valid word. It is often considered slightly more informal than until, but it functions identically in sentences. You can use them interchangeably in most casual contexts.
Why do people keep spelling it with two Ls?
People often spell it with two Ls because they mistakenly apply the rule for doubling consonants when adding suffixes. Since until ends in a single L and takes no suffix, the doubling rule does not apply here.
Does until have any other meanings besides time?
Yes, until can also refer to a place or limit. For example, you might say the path goes until the river. In this sense, it means up to the point of reaching that specific location or boundary.
