The correct spelling is R-E-G-I-S-T-R-A-T-I-O-N

Registration is spelled with ten letters: R, E, G, I, S, T, R, A, T, I, O, N. The word comes from the verb "register," which means to record something officially or to sign up for a service. When you spell it, the most common mistake is doubling the second "S" — writing "registsration" — but there is only one S in the middle of the word.

You will see this word across devices, accounts, and paperwork. A website might ask you to complete registration before using it. Your car needs registration with the state. A school asks for registration before classes start. In each case, the spelling stays the same, even though what you are registering for changes.

Key Takeaways

  • Registration is spelled R-E-G-I-S-T-R-A-T-I-O-N with one S in the middle, not two.
  • The word appears in tech contexts when you create an account, set up a device, or sign up for a service.
  • Common misspellings include "registsration" (extra S) and "registation" (missing letters), both of which spell-check will flag.
  • Breaking the word into parts — "register" plus the suffix "-tion" — makes the spelling easier to remember.

Where you see registration in tech

On websites and apps, registration usually means creating an account. You enter a username, password, and email address. The site records this information so you can log in later. The button often says "Register" or "Sign Up," and completing it is called finishing your registration.

Device registration happens when you set up a new phone, computer, or tablet. You may need to register with the manufacturer or with your internet provider. This step lets the company know you own the device and can send you updates or support.

In work and school settings, registration means signing up for a class, event, or program. You provide your name and contact details, and the organization records that you are attending. This is different from straightforward showing up — registration creates an official record beforehand.

How to remember the spelling

The easiest way to remember is to break the word into two parts: "register" and "-tion." The verb "register" is spelled R-E-G-I-S-T-E-R. When you add the suffix "-tion" to make it a noun, the E at the end of "register" drops off, leaving you with R-E-G-I-S-T-R-A-T-I-O-N.

Another memory trick: think of the phrase "register a nation" — both words start with the same letters. This helps you remember that registration has the full word "register" inside it, plus the "-tion" ending.

If you are typing and unsure, most spell-check tools will catch misspellings of registration. Microsoft Word, Google Docs, and most email programs will underline the word in red if you get it wrong, making it straightforward to fix before you send it.

Common misspellings and why they happen

The most frequent error is "registsration" — adding an extra S. This happens because the word has S sounds close together (the S in "register" and the S sound in "-tion"), which can trick your brain into typing two S letters in a row.

Another common mistake is "registation," which drops the R before the A. This usually happens when typing quickly, because your fingers skip over the R without noticing.

A third error is "registrasion," swapping the A and I near the end. This occurs because both vowels appear in quick succession, and it is straightforward to reverse them when you are not paying close attention.

Registration versus related words

Do not confuse registration with "registrar," which is a person or office that keeps records. A registrar works at a university, hospital, or government office. The word is spelled R-E-G-I-S-T-R-A-R — it ends in AR instead of ATION.

You might also see "registered," which is the past tense of register. It is spelled R-E-G-I-S-T-E-R-E-D. For example: "I registered my car" or "She is a registered nurse." The spelling of the root word stays the same; you just add -ED at the end.

"Registering" is the present participle form, spelled R-E-G-I-S-T-E-R-I-N-G. You use it when something is happening right now: "I am registering for the class." Again, the root word stays the same, and you add the suffix.

Why spelling matters in tech contexts

When you are filling out online forms, spelling registration correctly matters less than you might think — the website does not care how you spell it in your own notes. But if you are writing an email to tech support, a teacher, or a company, correct spelling makes your message clearer and more professional.

If you are searching for help online, typing "registration" correctly will give you better search results than a misspelled version. Search engines are smart enough to suggest corrections, but you will find what you need faster if you spell it right the first time.

Frequently Asked Questions

Is it registration or registation?

It is registration, with all ten letters: R-E-G-I-S-T-R-A-T-I-O-N. The word "registation" is a misspelling and will be flagged by spell-check. The correct spelling includes the R before the A.

Why do people spell it registsration?

The double S happens because the word contains an S sound twice in close proximity — once in "register" and again in the "-tion" suffix. Your brain can trick you into typing two S letters when there should only be one. Slowing down or using spell-check catches this mistake.

Does registration have one or two S letters?

Registration has only one S, located in the middle of the word between the I and the T. The "-tion" ending contains a T and an I, not an S. Many people mistakenly add a second S, but the correct spelling uses just one.

What is the difference between registration and registered?

Registration is a noun — the act or process of recording something officially. Registered is an adjective or verb form describing something that has been recorded. For example: "Complete your registration" (noun) versus "Your car is registered" (adjective). Both come from the same root word, but they serve different purposes in a sentence.

Can I use registation as a shorthand?

No — registation is not a recognized word in English. It is a misspelling of registration. In formal writing, emails, or any official context, always use the full, correct spelling: registration. Spell-check will catch it if you slip up.