Simple and straightforward:
* There was a discrepancy between the two accounts of the incident.
* The auditor discovered a discrepancy in the company's financial records.
* The witness's testimony presented a discrepancy with the evidence.
Adding context and nuance:
* The discrepancy in the data raised concerns about the accuracy of the experiment.
* The discrepancy between what the politician promised and what they delivered caused widespread disillusionment.
* The discrepancy in the number of votes cast and the number of registered voters led to questions about the election's integrity.
More complex sentences:
* The discrepancy in the ages of the twins was so slight that it was only noticeable to those who knew them well.
* Despite the discrepancy in their backgrounds, they found common ground in their shared passion for music.
* The discrepancy between the ideal and the reality of life can be a source of both frustration and inspiration.
Remember, "discrepancy" refers to a lack of agreement or consistency. It can be used to describe a difference in facts, opinions, or even expectations.