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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.

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

Donor-advised funds make this easier, letting you deduct now and distribute later.

From MarketWatch • Mar. 16, 2026

Businesses with under $31 million in average annual gross receipts can deduct unamortized 2022-2024 R&D expenses on 2025 or 2026 taxes.

From Barron's • Mar. 14, 2026

It springs from a landmark 1930 case involving Cohan that allows taxpayers to deduct some expenses even if they don’t have receipts, as long as there’s a reasonable estimate.

From The Wall Street Journal • Mar. 6, 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

From Roget's 21st Century Thesaurus, Third Edition Copyright © 2013 by the Philip Lief Group.