Meaning & use
one at a time
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Meanings
phrasefixed phrase
Individually in order, not all together at the same moment.
Grammar: Used like an adverb; it does not change form.
Patterns
- do something one at a time
- take something one at a time
Please come in one at a time so I can check your tickets.
The teacher called the students one at a time to read aloud.
We should deal with these problems one at a time.
phrasefixed phrase
Separately, so that each person or thing gets full attention before the next.
Grammar: Often used to emphasize patience and careful order.
Patterns
- one at a time, please
- handle something one at a time
The doctor sees patients one at a time, so you may have to wait.
Let's go through the questions one at a time.
Common combinations
- one at a time, please
- One at a time, please—there's enough for everyone.
- take something one at a time
- Try to take each day one at a time.
- one at a time in order
- The names were called one at a time in order.
- deal with something one at a time
- Let's deal with the complaints one at a time.
Synonyms and how they differ
- individually
- Similar but can also mean 'separately from others' without the idea of a sequence.
- one by one
- Means the same and is often used interchangeably; 'one by one' sometimes suggests a steady succession.
Opposites
Commonly confused: one at a time or at one time?
one at a time vs at one time
Means 'at the same time' or 'formerly', which is almost the opposite of 'one at a time'.
Practice
Choose the best sentence.
Choose one answer.
The correct phrase is 'one at a time'. The other options are not standard English phrases.
Make it your own
Write a sentence using “one at a time”, then check it and compare it with the examples above.