A deduction is a conclusion that you have reached about something because of other things that you know to be true.
It was a pretty astute deduction. [+ about]
My mother had made her own shrewd deductions about what was going on.
Synonyms: conclusion, finding, verdict, judgment More Synonyms of deduction
2. uncountable noun
Deduction is the process of reaching a conclusion about something because of other things thatyou know to be true.
...a case that tested his powers of deduction.
3. countable noun
A deduction is an amount that has been subtracted from a total.
...your gross income (before tax and National Insurance deductions).
After deductions for reparations, the balance would be used for humanitarian supplies.
Synonyms: discount, reduction, cut, concession More Synonyms of deduction
4. uncountable noun
Deduction is the act or process of subtracting an amount of money from a total amount.
After the deduction of tax at 20 per cent, the interest rate will be 6.2 per cent.
Synonyms: subtraction, reduction, allowance, concession More Synonyms of deduction
More Synonyms of deduction
deduction in British English
(dɪˈdʌkʃən)
noun
1.
the act or process of deducting or subtracting
2.
something, esp a sum of money, that is or may be deducted
3.
a.
the process of reasoning typical of mathematics and logic, whose conclusions follow necessarily from their premises
b.
an argument of this type
c.
the conclusion of such an argument
4. logic
a.
a systematic method of deriving conclusions that cannot be false when the premises are true, esp one amenable to formalization and study by the science of logic
b.
an argument of this type
Compare induction (sense 4)
deduction in American English
(diˈdʌkʃən; dɪˈdʌkʃən)
noun
1.
a deducting or being deducted; subtraction
2.
a sum or amount deducted or allowed to be deducted
3. Logic
the act or process of deducing; reasoning from the general to the specific, or from premises to a logically valid conclusion; also, a conclusion reached by such reasoning
see also induction
Derived forms
deductive (deˈductive)
adjective
deductively (deˈductively)
adverb
Word origin
ME deduccioun < L deductio
deduction in Accounting
(dɪdʌkʃən)
Word forms: (regular plural) deductions
noun
(Accounting: Tax)
A deduction is an expense that can be deducted from income on a tax return.
Most homeowners can get a federal income tax deduction on interest payments to a home equity loan.
Government aid to industry includes outright grants, low-interest loans, and taxincentives such as deductions.
A deduction is an expense that can be deducted from income on a tax return.
Examples of 'deduction' in a sentence
deduction
Staff deductions such as income tax had also been allegedly retained.
The Sun (2017)
The credit is made available as a tax deduction based on a company’s R&D spending.
Computing (2010)
Taxpayers claiming the optional deduction will complete a significantly simplified form.
Christianity Today (2000)
It is important to note that some deductions may affect the calculations for the national minimum wage.
Times, Sunday Times (2014)
The law firm will not make deductions from compensation awarded to clients.
Times, Sunday Times (2015)
The deduction of interest from profits before corporation tax is the second.
Times, Sunday Times (2007)
The amount will be subject to deductions for tax.
Times, Sunday Times (2009)
Buy-to-let investors have an advantage of being able to get interest only mortgages and tax deductions on their income.
Times, Sunday Times (2014)
The points deduction makes it hard to recruit players and we have to be open and honest with them.
The Sun (2008)
They also face a 10-point deduction with administration looming.
The Sun (2008)
The 10-point deduction is a chance to prove how good a squad we are.
The Sun (2013)
The interest paid on cash balances within Isas is paid without the deduction of income tax.
Times, Sunday Times (2008)
If it is excessive, it may not qualify for a corporation tax deduction.
Times, Sunday Times (2014)
As with any other business, you can make deductions from your profits.
Times, Sunday Times (2008)
That 10-point deduction for going into administration will hinder their progress.
The Sun (2009)
In addition, there is considerable variations between countries according to what expenditures are deductible in determining taxable income and the amount of deductions.
Maurice D. Levi International Finance: The markets and financial management of multinational business. (1983)
At the same time he introduced a 25 per cent deduction for anybody who worked overseas plus a 100 per cent deduction in certain circumstances.
Times, Sunday Times (2011)
Chinese translation of 'deduction'
deduction
(dɪˈdʌkʃən)
n
(c) (= conclusion) 推论(論) (tuīlùn) (种(種), zhǒng)
(u) (= deductive reasoning) 演绎(繹) (yǎnyì)
(u) (= subtraction) 扣除 (kòuchú)
(c) (= amount deducted) 扣除额(額) (kòuchú'é)
Nearby words of
deduction
dedication
deduce
deduct
deduction
deed
deem
deep
1 (noun)
Definition
a conclusion reached by this process
It was a pretty astute deduction.
Synonyms
conclusion
We came to the conclusion that it was too difficult to combine the two techniques.
finding
He said we should accept the findings of the court.
verdict
The jury returned a unanimous guilty verdict.
judgment
The Court is expected to give its judgment within the next ten days.
assumption
They are wrong in their assumption that we are all alike.
inference
There were two inferences to be drawn from her letter.
corollary
2 (noun)
Definition
a process of reasoning by which a conclusion necessarily follows from a set of general premises
`How did you guess?' `Deduction,' he replied.
Synonyms
reasoning
the reasoning behind the decision
thinking
There was a strong theoretical dimension to his thinking.
thought
After much thought I decided to quit my job and go travelling.
reason
a conflict between emotion and reason
analysis
We did an analysis of the way they have spent money in the past.
logic
The plan was based on sound commercial logic.
cogitation
ratiocination
3 (noun)
Definition
something that is deducted
your gross income, before tax and insurance deductions
Synonyms
discount
You often get a discount on discontinued goods.
reduction
Reductions of 10-15 per cent are common on these package holidays.
cut
The economy needs an immediate two per cent cut in interest rates.
concession
We don't know how long the government will allow these tax concessions to continue.
allowance
decrease
There has been a decrease in the number of young unemployed people.
rebate
a tax rebate
diminution
The president has accepted a diminution of his original powers.
4 (noun)
Definition
the act or process of subtracting
the deduction of tax at 20%
Synonyms
subtraction
reduction
allowance
those earning less than the basic tax allowance
concession
Additional synonyms
in the sense of allowance
those earning less than the basic tax allowance
Synonyms
concession,
discount,
reduction,
repayment,
deduction,
rebate
in the sense of analysis
Definition
a statement of the results of this
We did an analysis of the way they have spent money in the past.
Synonyms
study,
reasoning,
opinion,
judgment,
interpretation,
evaluation,
estimation,
dissection
in the sense of assumption
Definition
something that is taken for granted
They are wrong in their assumption that we are all alike.