Once and for all
adverb
Definitely and completely, with no need for doing or repeating something again.
I will clean my room once and for all today, so I won't have to do it again tomorrow.

Often appears as...
- decide something once and for all
- finish something once and for all
Usage tips
General, Idiomatic
adverb
Used to express that something will be done or resolved once and not repeatedly.
Let's resolve this issue once and for all, so we don't have to keep discussing it.

Often appears as...
- resolve once and for all
- eliminate something once and for all
Usage tips
Colloquial, Idiomatic
adverb
Definitely and completely, with no need for doing or repeating something again.
I will clean my room once and for all today, so I won't have to do it again tomorrow.

Often appears as...
- decide something once and for all
- finish something once and for all
Usage tips
General, Idiomatic
adverb
Used to express that something will be done or resolved once and not repeatedly.
Let's resolve this issue once and for all, so we don't have to keep discussing it.

Often appears as...
- resolve once and for all
- eliminate something once and for all
Usage tips
Colloquial, Idiomatic
Definition 1 of 2

Final Action
Use when you describe an action that concludes something definitively.

I quit the band once and for all.
No Repetition
It implies you won't repeat the action or that it won't become necessary again.

She closed the shop once and for all.
Strong Emphasis
Adds strength to a statement, making it sound more decisive.

This law will solve the problem once and for all.
Final Action
Use when you describe an action that concludes something definitively.

I quit the band once and for all.
No Repetition
It implies you won't repeat the action or that it won't become necessary again.

She closed the shop once and for all.
Strong Emphasis
Adds strength to a statement, making it sound more decisive.

This law will solve the problem once and for all.
Final Action
Use when you describe an action that concludes something definitively.

I quit the band once and for all.
No Repetition
It implies you won't repeat the action or that it won't become necessary again.

She closed the shop once and for all.
Strong Emphasis
Adds strength to a statement, making it sound more decisive.

This law will solve the problem once and for all.
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