Thanks for your reply, but not sure if it answers my question -
1 - lucene-suggest is for search auto-suggest suggestions, I was looking for spellchecking - something like - did you mean contribute
I think lucene-spellcheck would be the index for spellchecking
2- even the useInSpellcheck = true property in lucene-spellcheck index allows to add the properties which will be considered in spellchecking, like jcr:content , jcr:title etc
it says nothing about adding a custom dictionary of words - such as upi, pht, etc
request you to please let me know if this makes sense or if I am wrong.
Also requesting other jackrabbit oak experts, if they can throw light on this issue.
Thanks,