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thorough
/ˈθʌr.ə/
complete and detailed
She conducted a thorough investigation of the incident.
She examined all aspects of the incident carefully and completely.
formal
done carefully and completely, with full attention to detail
The doctor performed a thorough examination of the patient.
The doctor checked every part of the patient's body carefully.
We need a thorough review of the project before submission.
We must examine every aspect of the project carefully before submitting it.
Often used in professional or formal contexts to emphasize meticulousness.
Collocations
thorough investigationa detailed and complete examinationthorough reviewa careful and complete assessmentthoroughly checkto examine something carefully and completely
Pro Tip
Formal vs. Informal
Use 'thorough' in formal or professional contexts. For informal speech, consider synonyms like 'complete' or 'detailed'.
Gold Rule
Adjective Usage
'Thorough' is an adjective. To use it as an adverb, add '-ly' (e.g., 'thoroughly').
Word Origin
From Middle English 'thorough', from Old English 'þurh' (through) + '-ough' (suffix forming adjectives). The sense of 'complete' developed in the 16th century.
Usage Notes
Often used in formal or professional contexts to describe actions that are done with great care and attention to detail. Can also be used as an adverb ('thoroughly').
Word Breakdown
thorough
complete and detailed
rootEnglish Dictionary