I just had to see for myself...
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fact  /fækt/ Show Spelled Pronunciation [fakt] Show IPA
Use fact in a Sentence
–noun 1. something that actually exists; reality; truth: Your fears have no basis in fact.
2. something known to exist or to have happened: Space travel is now a fact.
3. a truth known by actual experience or observation; something known to be true: Scientists gather facts about plant growth.
4. something said to be true or supposed to have happened: The facts given by the witness are highly questionable.
5. Law. Often, facts. an actual or alleged event or circumstance, as distinguished from its legal effect or consequence. Compare question of fact, question of law
o⋅pin⋅ion  /əˈpɪnyən/ Show Spelled Pronunciation [uh-pin-yuhn] Show IPA
Use opinion in a Sentence
–noun 1. a belief or judgment that rests on grounds insufficient to produce complete certainty.
2. a personal view, attitude, or appraisal.
3. the formal expression of a professional judgment: to ask for a second medical opinion.
4. Law. the formal statement by a judge or court of the reasoning and the principles of law used in reaching a decision of a case.
5. a judgment or estimate of a person or thing with respect to character, merit, etc.: to forfeit someone's good opinion.
6. a favorable estimate; esteem: I haven't much of an opinion of him.