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Definitions

deduct

[dih-duhkt] / dɪˈdʌkt /
VERB
take away or out; reduce
Synonyms
STRONGEST
reduce subtract withdraw write off
STRONG
abstract allow bate diminish discount dock lessen rebate remove take
WEAK
cut back decrease by draw back knock off roll back take from take off
Antonyms
STRONG
add disallow enlarge expand extend hold increase keep lengthen raise refuse reject strengthen

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

The new law permanently provides full expensing, allowing businesses to immediately deduct the full cost of new investments, just as they do for labor or utility costs.

From MarketWatch • Apr. 7, 2026

That means a taxpayer in the highest bracket who gives $10,000 to charity beyond the 0.5% floor could deduct only $3,500, rather than $3,700.

From The Wall Street Journal • Apr. 6, 2026

And in New Jersey, you can’t deduct your HSA contribution from your income, among other rules.

From MarketWatch • Mar. 30, 2026

The bill, passed in July, restores the ability to fully deduct domestic R&D expenses beginning on 2025 taxes.

From Barron's • Mar. 14, 2026

“We won’t blame you. We’ll just deduct it from our rent checks this month!”

From "The Book of Unknown Americans" by Cristina Henríquez