Logic refers to reasoningThe process of thinking through facts to reach a conclusion. that follows clear principles. It can mean a system for reasoning, the study of valid inferenceA conclusion reached from evidence or clues., the underlyingExisting beneath the surface; forming the hidden basis. reasoning in a situation, or the sense that something makes reasonable sense.
Reviewed with OpenAI Decisions. Assessment: accurate. Checked: 2026-10-24. AI assessment; not a guarantee of accuracy.
Pronunciation
AI-generated pronunciation audio (OpenAI).
Accent: General American English
IPA: /ˈlɑdʒɪk/
Easy pronunciation: LOH-jik (approximate spelling).
Stress: Stress on the first syllable.
Use this for the noun meaning a system of reasoning.
Reviewed with OpenAI Decisions. Assessment: uncertain — manual review needed. Checked: 2026-10-24. AI assessment; not a guarantee of accuracy.
Logic Meaning
a set of rules or principles used to reason clearly
Part of speech: noun
Definition: a system of reasoning
Example: The argument doesn’t follow normal logic.
Synonyms for this meaning:
- logical system — A direct substitute for this sense.
- system of logic — A direct substitute for this sense.
Reviewed with OpenAI Decisions. Assessment: accurate. Checked: 2026-10-24. AI assessment; not a guarantee of accuracy.
Other Meanings of Logic
Meaning 2
sound thinking that makes sense
Part of speech: noun
Definition: reasoned and reasonable judgment
Example: There was a certain logic to her decision.
Meaning 3
the study of correct reasoning
Part of speech: noun
Definition: the branch of philosophy that analyzes inference
Example: She studied logic at university.
Meaning 4
the way something makes sense in a particular context
Part of speech: noun
Definition: the principles that guide reasoning within a given field or situation
Example: By the logic of the rule, he should be allowed in.
Meaning 5
the internal workings that handle logical operations in a computer
Part of speech: noun
Definition: the system of operations performed by a computer that underlies the machine's representation of logical operations
Example: The software uses special logic to process the input.
Reviewed with OpenAI Decisions. Assessment: uncertain — manual review needed. Checked: 2026-10-24. AI assessment; not a guarantee of accuracy.
Logic Synonyms
Similar Meaning
- logical system
- system of logic
reasoned and reasonable judgment
- logic
the branch of philosophy that analyzes inference
- logic
the principles that guide reasoning within a given field or situation
- logic
the system of operations performed by a computer that underlies the machine's representation of logical operations
- logic
Reviewed with OpenAI Decisions. Assessment: inaccurate — correction needed. Checked: 2026-10-24. AI assessment; not a guarantee of accuracy.
Common Mistakes
- Using logic as if it always means 'facts' or 'truth' rather than a way of reasoning.
- Mixing up logic the subject in philosophy with logic meaning a sensible explanation or pattern.
- Treating logic in a situation as the same thing as formal logic, the study of reasoning.
Reviewed with OpenAI Decisions. Assessment: accurate. Checked: 2026-10-24. AI assessment; not a guarantee of accuracy.
Frequently Asked Questions
What does logic mean in simple terms?
Logic is a way of thinking or reasoning that follows clear rules and makes sense.
What is logic used for?
It is used to judge whether an argument, decision, or explanation is reasonable and well structured.
Is logic the same as reason?
They are close, but not exactly the same. Logic usually refers to the rules or structure of reasoning, while reason is the broader ability to think and judge.
What are good synonyms for logic?
For the main sense, good synonyms are logical system and system of logic. Other senses are more context-specific and do not have many direct substitutes.
Reviewed with OpenAI Decisions. Assessment: accurate. Checked: 2026-10-24. AI assessment; not a guarantee of accuracy.
