1. the process of reaching a conclusion by reasoning from general principles to specific cases
Usage: logic; formal reasoning
2. an amount that is subtracted from a total, especially from taxable income or a payment
Usage: finance; taxation
3. the act of taking away or removing something

Examples

• Through deduction, Holmes solved the mystery using the available clues.
• The detective used deduction to identify the suspect.
• You can claim a tax deduction for charitable donations.
• The deduction from my paycheck covers health insurance.
• After all deductions, her take-home pay was much lower.
• The company offered a deduction for early payment.
• By deduction, we can eliminate the impossible options.