C1 noun Neutral

equation

/ɪˈkweɪ.ʒən/

A mathematical statement asserting the equality of two expressions, typically involving variables. Metaphorically, it refers to a complex situation where multiple factors must be balanced or considered together to achieve a result.

Examples

3 of 5
1

Finding a balance between work and family life is a difficult equation for many parents to solve.

Finding a balance between work and family life is a difficult situation for many parents to solve.

2

The diplomatic mission aimed to stabilize the power equation between the two neighboring states.

The diplomatic mission aimed to stabilize the balance of power between the two neighboring states.

3

When you're choosing a car, don't forget to put insurance costs into the equation.

When you're choosing a car, don't forget to include insurance costs in your considerations.

Word Family

Noun
equation
Verb
equate
Adverb
equally
Adjective
equational
Related
equality
💡

Memory Tip

Look at the first four letters: E-Q-U-A. It looks like 'EQUAL'. An equation is just two sides being equal.

Quick Quiz

The rising cost of electricity is a new factor we must include in our financial ________.

Correct!

The correct answer is: equation

Examples

1

Finding a balance between work and family life is a difficult equation for many parents to solve.

everyday

Finding a balance between work and family life is a difficult situation for many parents to solve.

2

The diplomatic mission aimed to stabilize the power equation between the two neighboring states.

formal

The diplomatic mission aimed to stabilize the balance of power between the two neighboring states.

3

When you're choosing a car, don't forget to put insurance costs into the equation.

informal

When you're choosing a car, don't forget to include insurance costs in your considerations.

4

The researcher utilized a linear equation to model the rate of chemical decomposition over time.

academic

The researcher used a mathematical formula to model the rate of chemical decomposition over time.

5

The loss of our primary investor completely changed the profit equation for the next fiscal year.

business

The loss of our primary investor completely changed the financial calculation for the next fiscal year.

Word Family

Noun
equation
Verb
equate
Adverb
equally
Adjective
equational
Related
equality

Common Collocations

solve an equation to find the answer to a mathematical problem
balance the equation to make both sides of a situation or formula equal
part of the equation one factor in a larger situation
quadratic equation a mathematical equation involving the second power of a variable
complex equation a situation or problem with many difficult parts

Common Phrases

the other side of the equation

the opposing factor or the other point of view

personal equation

personal bias that affects a person's judgment

factor into the equation

to include something as a consideration in a decision

Often Confused With

equation vs equality

Equality is the state of being equal, whereas an equation is the specific statement or formula showing that equality.

📝

Usage Notes

In academic settings, use 'equation' for mathematical proofs; in C1 level social contexts, use it to describe the dynamic interplay between different factors.

⚠️

Common Mistakes

Learners often use the verb 'to equation' instead of 'to equate'. Remember that 'equation' is strictly a noun.

💡

Memory Tip

Look at the first four letters: E-Q-U-A. It looks like 'EQUAL'. An equation is just two sides being equal.

📖

Word Origin

From the Latin 'aequatio', meaning 'an equalizing' or 'making level'.

Grammar Patterns

countable noun takes the plural form 'equations' often used with the preposition 'into' or 'of'
🌍

Cultural Context

Strongly associated with STEM fields and the idea that complex life problems can be analyzed like math.

Quick Quiz

The rising cost of electricity is a new factor we must include in our financial ________.

Correct!

The correct answer is: equation

Related Phrases

Related Words

complement

A2

A thing that completes or brings to perfection something else. In grammar, it refers to a word or phrase that follows a verb and provides more information about the subject or object.

compound

A2

Describes something that is made of two or more separate parts or elements joined together. It is often used to talk about words, sentences, or chemical substances that have multiple components.

conceive

A2

To form an idea, plan, or concept in the mind. It is also the medical term used to describe when a woman becomes pregnant.

confer

A2

To discuss something with other people in order to reach a decision or exchange ideas. It can also mean to officially give an honor, title, or degree to someone.

conform

A2

To behave according to rules, standards, or what is expected by a group of people. It means to fit in or act in a way that matches others.

consecutive

A2

Following one after another in a continuous series without any breaks. It describes things that happen in a logical order, like numbers (1, 2, 3) or days (Monday, Tuesday, Wednesday).

consistency

A2

Consistency is the quality of always acting or behaving in the same way. it also describes how thick or smooth a liquid or substance is.

disclude

B1

Describing a state where someone or something is left out, omitted, or not allowed to participate in a group or activity. It refers to the condition of being kept apart from a whole or a set.

antiformous

B1

Describes a shape or structure that is curved or folded upwards like an arch. It is most often used in geology and geometry to describe a convex surface.

interspect

B1

Describing a person who is thoughtful and focused on their own internal thoughts and feelings. It refers to the act of looking inward to examine one's own emotions and motives rather than focusing on external things.

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