Spelling
Compatability or compatibility?
Compatibility is the right spelling. Compatability is a common misspelling of it.
COMPATABILITY has A where COMPATIBILITY has I.
Why people write COMPATABILITY
In an unstressed syllable, A, E, I and O all sound like a quick "uh", so the ear cannot tell which one is written.
Find a related word where that syllable is stressed, and the vowel becomes clear: definite has finite in it, and grammar goes with grammatical.
How often COMPATIBILITY is misspelled
In the web pages Google counted for its trillion-word corpus (Peter Norvig's word counts), COMPATABILITY appears 35 times for every 1,000 COMPATIBILITY, about once for every 29 correct uses.
Is COMPATABILITY a word?
No. COMPATABILITY is not in NWL2023, Collins Scrabble Words or ENABLE, the word lists Scrabble and other word games use, so no word game accepts it. COMPATIBILITY is in all three and scores 24 points in Scrabble before bonus squares.
What compatibility means
The property of being compatible.
More words with the same mistake
The wrong vowel:
More spelling help
Commonly misspelled words, grouped by the mistake · Free printables and word games for teachers · Unscramble any letters