"Going over with a fine tooth comb" is an idiomatic expression that denotes the act of examining something meticulously, with great attention to detail and thoroughness. The phrase is derived from the concept of using a fine-toothed comb, which has closely spaced teeth, to search for or remove even the tiniest particles or imperfections in hair or objects.
When someone "goes over with a fine tooth comb," they apply this same level of precision and scrutiny to their analysis or investigation. It suggests a meticulous and exhaustive approach aimed at uncovering even the most minute details, errors, or discrepancies that may have been overlooked initially. This phrase implies a methodical process of thorough review, usually done to ensure accuracy, correctness, or completeness.
The metaphorical connotation of "going over with a fine tooth comb" implies a comprehensive and meticulous examination of a subject, often involving multiple iterations or repeated scrutiny. It suggests an attempt to leave no stone unturned, ensuring that nothing goes unnoticed or overlooked, and affirming that every aspect has been thoroughly vetted and understood.
Whether applied to proofreading a document, investigating a complex issue, analyzing data, conducting research, or conducting a painstaking review of any kind, "going over with a fine tooth comb" emphasizes a meticulous, systematic, and detailed approach aimed at achieving the highest level of scrutiny and accuracy.
