What context can I use each word in?

Learn when and how to use these words with these examples!

installment

Example

I'll pay off the car loan in monthly installments. [installments: noun]

Example

The new Harry Potter book will be released in seven installments. [installments: noun]

Example

I need to install the new printer driver on my computer. [install: verb]

instalment

Example

I'll pay off the car loan in monthly instalments. [instalments: noun]

Example

The new Harry Potter book will be released in seven instalments. [instalments: noun]

Example

I need to install the new printer driver on my computer. [install: verb]

Definitions of installment and instalment

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Key differences and similarities of installment and instalment

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Good things to know

Which word is more common?

Installment is more commonly used in American English, while instalment is more commonly used in British English. However, both words are widely recognized and understood in both dialects.

What’s the difference in the tone of formality between installment and instalment?

Both installment and instalment are equally formal and can be used in both formal and informal contexts.