Different results here: From
www.m-w.com
Main Entry:
opinion 
Pronunciation: <TT>&-'pin-y&n</TT>
Function:
noun
Etymology: Middle English, from Middle French, from Latin
opinion-, opinio, from
opinari
1 a : a view, judgment, or appraisal formed in the mind about a particular matter
b : [size=-1]APPROVAL[/size], [size=-1]ESTEEM[/size]
2 a : belief stronger than impression and less strong than positive knowledge
b : a generally held view
3 a : a formal expression of judgment or advice by an expert
b : the formal expression (as by a judge, court, or referee) of the legal reasons and principles upon which a legal decision is based
Main Entry:
<SUP>1</SUP>faith 
Pronunciation: <TT>'fAth</TT>
Function:
noun
Inflected Form(s):
plural faiths 
/<TT>'fAths,
sometimes 'fA[
th]z</TT>/
Etymology: Middle English
feith, from Old French
feid, foi, from Latin
fides; akin to Latin
fidere to trust -- more at
[size=-1]BIDE[/size]
1 a : allegiance to duty or a person
: [size=-1]LOYALTY[/size] b (1)
: fidelity to one's promises (2)
: sincerity of intentions
2 a (1)
: belief and trust in and loyalty to God (2)
: belief in the traditional doctrines of a religion
b (1)
: firm belief in something for which there is no proof (2)
: complete trust
3 : something that is believed especially with strong conviction;
especially : a system of religious beliefs