Meaning & use
fixed amount
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Meanings
phrasecountable
an amount of money that stays the same and is decided in advance.
Grammar: Countable: you can say a fixed amount or several fixed amounts.
Patterns
- a fixed amount of money
- pay a fixed amount
- charge a fixed amount for something
The bank charges a fixed amount each month for the account.
Instead of paying by the hour, they agreed on a fixed amount for the whole job.
You can borrow a fixed amount and repay it over two years.
phrasecountabletechnical
a set quantity of something that does not vary.
Grammar: Often followed by of: a fixed amount of water.
Patterns
- a fixed amount of something
- add a fixed amount of something
Add a fixed amount of salt to each jar so the taste stays the same.
The machine releases a fixed amount of fuel into the engine.
Common combinations
- a fixed amount of money
- The prize is a fixed amount of money, not a percentage.
- pay a fixed amount
- Customers pay a fixed amount at the start of each year.
- charge a fixed amount
- The garage charges a fixed amount for a basic service.
- a fixed amount per month
- She saves a fixed amount per month.
- a fixed amount of time
- Each speaker is given a fixed amount of time.
Synonyms and how they differ
- flat fee
- A flat fee is a single set price for a service, usually paid once, while a fixed amount can be any unchanging sum.
- set sum
- A set sum simply means an amount already decided; it sounds a little more formal than fixed amount.
- constant
- Constant is used for values in science or math that do not change, not usually for money you pay.
Opposites
Word family
Commonly confused: fixed amount or flat rate?
fixed amount vs flat rate
A flat rate is a price that stays the same for everyone or for every unit; a fixed amount is just a sum that does not change.
Practice
The gym charges a ______ amount every month, whatever you use.
Choose one answer.
We need an adjective before the noun amount, and fixed means unchanging. Fixing, fix, and fixes are verb forms and cannot describe amount here.
Make it your own
Write a sentence using “fixed amount”, then check it and compare it with the examples above.