Longman Dictionary of Contemporary English homepage

deduction

noun
     
de‧duc‧tion [uncountable and countable]
1 the process of using the knowledge or information you have in order to understand something or form an opinion, or the opinion that you form:
Children will soon make deductions about the meaning of a word.
2 the process of taking away an amount from a total, or the amount that is taken away:
After deductions for tax etc, your salary is about £700 a month.

Dictionary pictures of the day
Do you know what each of these is called?
What is the word for picture 1? What is the word for picture 2? What is the word for picture 3? What is the word for picture 4?
Click on any of the pictures above to find out what it is called.

Explore our topic dictionary