Training or Trainning: Which Is Correct?
Updated · Which One Is Correct editorial team

Quick answer: When addressing the search phrase training or trainning, it is clear that training is the correct spelling while trainning is incorrect. The word training refers to the process of teaching or learning skills. People often misspell it by adding double n letters by mistake. This guide clarifies the proper usage to help you avoid errors in your writing and communication today.
The Short Answer
The verdict on training or trainning is clear: training is correct; trainning is a misspelling.
People confuse these words because the root word train ends with an n sound, leading some to believe two n letters are needed. However, English spelling rules do not require double consonants here, just as in words like cleaning or winning.
Side-by-Side Comparison
| Form | Status | Use it when |
|---|---|---|
| training | Correct | When discussing education or skill development. |
| trainning | Incorrect | Never use this form in formal or informal writing. |
| training | Noun | As a standalone concept like dog training or job training. |
| training | Verb form base | Used with an -ed or -ing ending for past or continuous actions. |
Correct Example Sentences
- The new employee attended safety training before starting work.
- Dog training requires patience and consistent positive reinforcement.
- Employee training helps improve productivity across the entire department.
- She completed her leadership training with flying colors.
- The school offers free coding training for all students.
- Military training prepares recruits for various physical challenges.
- Boxer training involves teaching commands and obedience skills.
- On-the-job training allows workers to learn while performing tasks.
- Language training can help you communicate in a new country.
- The company invested heavily in staff training programs last year.
Common Mistakes and Fixes
- I went to trainning to learn how to drive.
- I went to training to learn how to drive.
- She is doing trainning for the marathon event.
- She is doing training for the marathon event.
- The trainning course was very difficult for beginners.
- The training course was very difficult for beginners.
- We need more trainning to fix the equipment issues.
- We need more training to fix the equipment issues.
- His trainning session ended right before lunch time.
- His training session ended right before lunch time.
- The trainning manual has been updated for the new model.
- The training manual has been updated for the new model.
Related Word Pairs
- flaming vs flamming
- use flaming for fire effects and flamming is not a standard word
- humming vs humming
- humming is the sound bees make while humming is incorrect spelling
- popping vs poping
- popping describes a sound or action while poping is a misspelling
- quitting vs quiting
- quitting means to leave and quiting is an error in spelling
- tanning vs taining
- tanning is the process of coloring skin and taining does not exist
- tolling vs tolling
- tolling is a valid spelling for ringing a bell and tolling is correct
- winding vs winding
- winding describes twisting and wending is the path a traveler takes
- worrying vs worring
- worrying is the act of feeling anxious and worring is a misspelling
Frequently Asked Questions
Is trainning a valid word in any context?
No, trainning is never considered a valid word in standard English. It is a consistent spelling error where an extra n is added incorrectly. Always use training instead to maintain proper grammar and avoid looking uneducated.
Why do people misspell training with two n letters?
People often misspell training with two n letters because the spoken sound involves a double n sound in the middle of the word. This phonetic similarity tricks the brain into adding an extra letter that is not actually required by spelling rules.
Can I use trainning in casual texting messages?
You should avoid using trainning even in casual texting messages because it is still a clear spelling mistake. Even friends and family expect proper spelling, and using the wrong form can make your message look careless or unprofessional.
What is the correct spelling of the verb train?
The correct spelling of the verb train is simply train, and when used as a noun like the activity of learning, it becomes training. There is no need to add double n letters to the base verb train to make it correct.





