Tier four of five
How to spell conscientious
What it means
careful and thorough
How it sounds
/ˌkɑnʃiˈɛnʃəs/
Why it catches people out
Conscience + tious, with ce becoming ti. Two i's, one either side of the nt.
The spellings people reach for
- consciencious
- conscientous
- concientious
In a sentence
He was a conscientious reviewer.