Compound

/ˈkɒmpaʊnd/

nounIntermediate📊CommonScience
4 meanings2 idioms/phrases3 questions

Definitions

4 meanings
1

A thing consisting of two or more elements, ingredients, or parts.

/ˈkɒmpaʊnd/

nounneutralIntermediate
Science

A thing that is composed of two or more separate elements; a mixture.

Salt is a common compound used in cooking.

💡 Simply: Imagine you're baking a cake. The cake is a compound, because it's made up of lots of different ingredients mixed together. You wouldn't just eat flour, you'd eat the compound - the cake!

👶 For kids: A compound is when you mix two or more things together to make something new!

More Examples

2

The scientist analyzed the chemical compound.

3

The security guard patrolled the compound throughout the night.

How It's Used

Chemistry

"Water is a compound of hydrogen and oxygen."

Architecture

"The temple complex was a large compound with several buildings."

2

To make something worse, more serious, or more intense; to add to.

/kəmˈpaʊnd/

verbnegativeIntermediate
Action

To make something worse; to intensify.

The delay compounded the already difficult situation.

💡 Simply: Imagine you make a mistake, and then, to make it worse, you make another mistake. Each mistake adds to the problem, which is 'compounding' the problem.

👶 For kids: To make something even bigger or worse.

More Examples

2

The error compounded the problem of meeting the deadline.

3

The stress of the project compounded the team's fatigue.

How It's Used

Finance

"The interest on the loan was compounded annually."

General

"The mistake compounded his difficulties."

Tip:Think of adding ingredients to a bad recipe. The more ingredients, the worse the dish (situation).
3

To put together or combine two or more things or parts; form by combining parts or elements.

/kəmˈpaʊnd/

verbneutralIntermediate
Action

To put together; combine

The scientist compounded the chemicals to create the new substance.

💡 Simply: When you compound things, you're putting them together to make a whole new thing. Think of like Lego blocks.

👶 For kids: To put things together to make something.

More Examples

2

The author compounded several storylines into one novel.

3

To compound a solution, you need to mix the right amount of chemicals together.

How It's Used

Language

"The writer compounded two different sentences into a single sentence."

Tip:Picture combining elements like a chef combining ingredients to make a dish.
4

Consisting of two or more parts; composite.

/ˈkɒmpaʊnd/

adjectiveneutralIntermediate
Descriptive

Made up of two or more parts.

A compound word is formed by joining two words.

💡 Simply: If something's 'compound' it means it's made up of a few parts. Like a sandwich made of bread, meat, and cheese.

👶 For kids: Made of two or more parts.

More Examples

2

The problem was compounded by the compound effect of multiple failures.

3

The compound interest grows significantly over time.

How It's Used

General

"A compound sentence contains two or more independent clauses."

Law

"The judge sentenced them to a compound punishment."

Tip:Think of a compound word: a word made of two words (e.g., 'sun' + 'flower').

Idioms & expressions

compound interest

Interest calculated on the initial principal and also on the accumulated interest of previous periods.

"Investing early will allow your money to benefit from compound interest."

in compound

Combined; mixed.

"The ingredients were mixed in compound to make the recipe."

From Old French 'compondre' (to put together), from Latin 'componere' (to put together; compose), from 'com-' (together) + 'ponere' (to place).

The word 'compound' has been used in scientific and legal contexts for centuries, with its financial use (compound interest) gaining prominence in the 17th and 18th centuries.

Memory tip

Think of a recipe – the final dish (compound) is made of individual ingredients.

Word Origin

LanguageLatin
Original meaning

"To put together; compose"

chemical compoundcompound interestcompound sentenceresidential compoundcompound a problem

Common misspellings

compundcompond

Usage

40%Spoken
60%Written