Discrepancy (noun)

1. A difference, disagreement, or inconsistency between two or more things.
2. A lack of agreement or compatibility between two or more sets of facts, figures, or accounts.
3. A deviation from the expected, standard, or normal.

Origin:

From latin discrepantia, meaning a difference, disagreement, or discrepancy.

Examples:

1. The discrepancy between the two reports was noticed by the auditor.
2. The discrepancy in the data was corrected by the research team.
3. The discrepancy in their stories raised suspicion.
4. The discrepancy in the prices caused confusion in the market.
5. The discrepancy in the exam results was investigated by the school.