Logic Meaning: Here’s What It Means and How To Use It

Your writing, at its best

Compose bold, clear, mistake-free, writing with Grammarly's AI-powered writing assistant

If you’re a fan of philosophy or the American Rapper Robert Bryson Hall, you’ve likely come across the word logic before — but do you know what it means? Not to worry; The Word Counter is here to help!

Some might not know that there are a few definitions for the word logic. In this post, we’re exploring the term logic to uncover its definition, origin, synonyms, antonyms, and more. So if the word logic has ever left you wondering its meaning — keep reading. 

What Is the Definition of Logic?

/ˈlɒdʒɪk/ /ˈlɒdʒ ɪk/ /ˈlɒdʒ.ɪk/

According to the Collins English Dictionary, our word of the day is a method of reasoning that involves a series of statements — each of which must be true if the statement before it is true. 

Other definitions of logic include:

  • A science that deals with principles and criteria of validity of inference and demonstration. In other words, it’s the science of the formal principles of reasoning. 
  • Something that forces a decision apart from or in opposition to reason. For example, the logic of war.

In simpler terms, logic is a science that deals with the formal principles of reason. For instance, if a friend walks inside with a wet umbrella and raincoat, it’s logical for one to assume that it’s raining outside. 

What Is the Etymology of Logic?

The word logic — as well as logistics — derives from the Greek logos, meaning “reason,” “discourse,” “rule,” “sentence,” and “ratio.” Our word of the day also has roots in Anglo-French, deriving from Anglo-French, Latin logica, Greek logikē, and feminine “logikos.”

What Are the Synonyms and Antonyms of Logic?

A great way to improve your overall understanding of a new word is by studying synonyms and antonyms. What are synonyms and antonyms, you ask?

In short, a synonym is one of two or more words of the same language that have the same — or nearly the same — meaning in some or all senses. An antonym, on the other hand, is a word whose meaning is directly opposite to another word’s meaning.  

Synonyms of logic include:

  • Intellection
  • Ratiocination
  • Reason
  • Reasoning
  • Sense
  • Consistent
  • Rationality
  • Induction
  • Thought
  • Wisdom
  • Dialectics
  • Sagacity
  • Coherence
  • Cognition
  • Sound judgment
  • Train of thought

Antonyms of logic include:

  • Incoherent
  • Confused
  • Illogical
  • Confusing
  • Delirious
  • Ignorance 
  • Irrational
  • Disjointed
  • Choppy
  • Dumb
  • Uncoordinated
  • Wandering
  • Scrambles
  • Hysterical
  • Incohesive
  • Discontinuous 

How Can You Use “Logic” in a Sentence?

Logic can be defined as rational thinking that’s not based on emotions — but how can our word of the day be used in a sentence? Here are a few example sentences for you to review below:

“When making a decision, please be sure to use logic — not your personal feelings.”

“Did you know that formal logic typically uses formal systems to give an accurate definition of correct reasoning using a formal language?”

“The science genius used logic, patience, and a special formula to solve the difficult equation.”

“While formal logic can use symbols to find validity, symbolic logic uses only symbols to deduce a conclusion.”

“When Cindy gets really emotional, her logic disappears, causing her to make irrational decisions.”

“Tommy thinks he can get a passing grade using fuzzy logic, but I don’t see that happening.”

“After staying up for two nights without a wink of sleep, logic began to drink away from Maddy’s thought process.”

“What kind of logic did you rely on to come up with that answer?”

“Logical reasoning is going to be the only kind of reasoning that helps us win the math tournament.”

“Do you happen to have a thesaurus on you? I am trying to find the synonyms and antonyms of logic.”

“Sure, Kanye West is cool and all, but if you ask me, Logic (aka Robert Bryson Hall) is the best rapper alive.”

“I’m finding it difficult trying to work out his system of logic.”

“Logic can refer to a branch of philosophy.”

“Look, I won’t lie to you… it’s a really stupid decision that completely defies logic.”

“Ms. Walter’s told us that Aristotle’s logic, especially his theory of the syllogism, has had an immense influence on the history of Western thought.”

“We learned in electronics today that a logic gate or logic circuit refers to an idealized or physical device implementing a Boolean logical operation.”

“Try your best to steer clear of deductive reasoning and rely solely on logic.”

“Tammy isn’t being mean; there’s just no logic in your argument,”

Did you know that a distinction is sometimes made between informal logic and formal logic?”

“It’s pretty simple to understand his logic.”

“If you’re trying to use logic, you’re going to have to rely on that big noggin of yours as opposed to your emotions.”

“You don’t have to be brilliant to use logic… you just need experience.”

What Are Translations of Logic?

Wondering how to use logic in a different language? We’ve got you covered! Here are some common translations for you to study below:

  • Afrikaans — Logika
  • Arabic — منطق
  • Bulgarian — логика
  • Chinese (simplified) — 逻辑
  • Croatian — logika
  • Czech — logika
  • American English — logic
  • Danish — logik
  • Dutch — logica
  • Finnish — logiikka
  • French — logique
  • German — Logik
  • Greek — λογική
  • Italian — logica
  • Japanese — 論理
  • British English — logic
  • Korean — 논리학
  • Norwegian — logikk
  • Polish — logika
  • Portuguese — lógica
  • Russian — логика
  • Spanish — lógica 
  • Swedish — logik
  • Thai — ตรรกวิทยา
  • Turkish — mantık
  • Ukrainian — логіка
  • Vietnamese — lôgic


So, what does logic mean, you ask?

In short, logic is the study of science and art of correct inferential reasoning. It deals with methods, laws, and principles of correct thinking. With this in mind, logic distinguishes correct from incorrect reasoning. 


A Short History of Logic | SpringerLink

Logic definition and meaning | Collins English Dictionary

LOGIC | definition | Cambridge English Dictionary