B2 noun Neutral #42 most common

logic

/ˈlɒdʒɪk/

Logic is the systematic study of valid inference and the principles of correct reasoning. It refers to a way of thinking that is sensible, consistent, and based on factual evidence rather than emotion.

Examples

3 of 5
1

It defies logic to go outside in the rain without an umbrella if you want to stay dry.

It doesn't make sense to go out in the rain without an umbrella.

2

The committee found a significant flaw in the logic of the proposed economic policy.

The committee found a mistake in the reasoning of the policy.

3

I don't really get your logic, but if it works for you, go for it.

I don't understand your way of thinking.

Word Family

Noun
logic
Adverb
logically
Adjective
logical
Related
logician
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Memory Tip

Logic starts with 'L' just like 'Links.' Think of logic as the 'Links' that connect ideas together in a strong chain.

Quick Quiz

The detective used his powers of ___ to solve the mysterious case by connecting the hidden clues.

Correct!

The correct answer is: logic

Examples

1

It defies logic to go outside in the rain without an umbrella if you want to stay dry.

everyday

It doesn't make sense to go out in the rain without an umbrella.

2

The committee found a significant flaw in the logic of the proposed economic policy.

formal

The committee found a mistake in the reasoning of the policy.

3

I don't really get your logic, but if it works for you, go for it.

informal

I don't understand your way of thinking.

4

In formal logic, a syllogism is a kind of logical argument that applies deductive reasoning.

academic

In the academic study of reasoning, a syllogism is a specific type of argument.

5

The business logic behind this acquisition is to consolidate our position in the European market.

business

The strategic reasoning for this purchase is to strengthen our market position.

Word Family

Noun
logic
Adverb
logically
Adjective
logical
Related
logician

Common Collocations

flaw in logic An error or mistake in a person's reasoning.
sound logic Reasoning that is valid, reliable, and based on good evidence.
follow the logic To understand the sequence of steps in an argument.
defy logic To be impossible to explain or completely unreasonable.
fuzzy logic A form of computing logic used to handle partial truths or approximations.

Common Phrases

Circular logic

Reasoning where the conclusion is already assumed in the starting premise.

Flawless logic

An argument that is perfect and cannot be proven wrong.

The logic of the situation

The natural or expected consequence of a specific set of circumstances.

Often Confused With

logic vs reasoning

Reasoning is the mental process of thinking; logic is the structured system or set of rules that defines if that reasoning is valid.

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Usage Notes

Logic can be used as an uncountable noun to refer to the field of study (e.g., 'He studied logic') or as a singular noun to describe a specific person's rationale (e.g., 'I don't see the logic in that').

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Common Mistakes

Learners often say 'make logic' when they mean 'make sense.' While 'logic' is the system, 'sense' is the outcome of using logic correctly in everyday speech.

💡

Memory Tip

Logic starts with 'L' just like 'Links.' Think of logic as the 'Links' that connect ideas together in a strong chain.

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Word Origin

Derived from the Ancient Greek word 'logikē', which means 'pertaining to reason or speech.'

Grammar Patterns

Uncountable noun Usually used without an article when referring to the academic discipline Can be followed by 'behind' or 'of' (the logic behind the decision)
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Cultural Context

In Western academic traditions, logic is one of the three original liberal arts (the Trivium), alongside grammar and rhetoric.

Quick Quiz

The detective used his powers of ___ to solve the mysterious case by connecting the hidden clues.

Correct!

The correct answer is: logic

Related Words

proceed

C1

The noun form, typically used in the plural 'proceeds,' refers to the total amount of money received from a particular event, sale, or activity. It is a formal term used in academic, legal, and business contexts to describe the result of a financial transaction or fundraising effort.

individual

C1

Relating to a single person or thing as distinct from a group. It describes something that is intended for, or used by, one person rather than a collective entity.

appropriately

B2

To perform an action in a manner that is suitable, right, or proper for a particular situation, person, or occasion. It implies following specific social norms, professional standards, or logical requirements.

region

B2

A region is an area of land that has common features, such as geography, climate, or culture, which distinguish it from other areas. It can refer to a large part of a country or the world and is often used in administrative or scientific contexts to organize space.

resource

B2

A stock or supply of money, materials, staff, and other assets that can be drawn on by a person or organization in order to function effectively. In academic and informational contexts, it refers to a source of information or expertise used to support research or learning.

hypothesis

B1

A hypothesis is a tentative statement or proposed explanation made on the basis of limited evidence. it serves as a starting point for further investigation and must be testable through scientific methods.

ozone

B2

Ozone is a colorless gas found in the upper atmosphere that protects the Earth from harmful ultraviolet radiation. It is also produced at ground level as a pollutant when sunlight reacts with industrial emissions.

layer

B2

A layer is a single thickness, sheet, or level of a material that covers a surface or is placed between other things. It can refer to physical substances like paint and geological strata, or abstract levels of complexity and meaning.

around

C2

As an adverb at a C2 level, it denotes presence, availability, or existence within a specific vicinity or context. It is also used to indicate approximate values or to describe movement or positioning that encircles a point or lacks a specific direction.

climate

B2

Climate refers to the long-term patterns of weather conditions, such as temperature and rainfall, in a particular region over many years. It can also describe the prevailing mood, conditions, or social atmosphere of a specific time or place.

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