Necessary or neccessary: which is correct?

Standard form
necessary
Non-standard
neccessary
Non-standard
necesary
Non-standard
neccesary
Summary

Standard form: necessary — Non-standard: neccessary / necesary / neccesary. Necessary = needed to be done, achieved or present; essential.

Part of speech
adjective
Source
Merriam-Webster

Why

Merriam-Webster: necessary comes from Latin necessarius and has one c followed by a double s. The classroom mnemonic — a shirt has one collar and two sleeves — gives the letters in order.

Examples

  • It is necessary to book in advance.
  • Take only the necessary documents.

Wrong → right

✗ Non-standard
It is neccessary to book in advance.
✓ Standard form
It is necessary to book in advance.
✗ Non-standard
Take only the neccessary documents.
✓ Standard form
Take only the necessary documents.
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Checked against
Merriam-Webster / Oxford
Spelling authority
Merriam-Webster · Oxford English Dictionary / Oxford spelling · SCOWL
Commonly confused and non-standard forms
64
Dictionary
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Commonly confused words

Commonly confused words are pairs or groups that sound or look alike but differ in meaning or grammar, such as affect and effect, its and it’s, or principal and principle. Each entry here explains the difference in plain words, shows it in two example sentences and names the convention it follows: Merriam-Webster for American English, Oxford for British English. Spelling variants such as colour and color are marked as correct in their own variety, not as errors.

All entries