1. to search deeply and thoroughly for information
2. to dig or excavate
Usage: somewhat archaic

Examples

• The journalist decided to delve into the politician’s financial records.
• She delved deeper into the mystery surrounding her grandfather’s past.
• The archaeologists delved into the ancient burial site.
• He delved through old documents to find evidence for his thesis.
• The detective delved into the suspect’s background.
• Researchers delved into the causes of the disease outbreak.