De dicto and de re
From the philosophical part of Wikipedia (a):
Consider the sentence "Jana wants to marry the tallest [person] in Fulsom County". It could be read either de dicto or de re; the meanings would be different.
One interpretation is that Jana wants to marry the tallest [person] in Fulsom County, whoever [they] might be. On this interpretation, what the statement tells us is that Jana has a certain unspecific desire; what she desires is that a certain situation should obtain, namely, Jana's marrying the tallest [person] in Fulsom County. The desire is directed at that situation, regardless of how it is to be achieved. [De dicto]
The other interpretation is that Jana wants to marry a certain [person], who in fact happens to be the tallest [person] in Fulsom County. [De re]