won't know the difference vs won't notice the difference

Both phrases are correct, but they are used in slightly different contexts. 'Won't know the difference' is commonly used when someone is unable to distinguish between two things, while 'won't notice the difference' is used when someone is unable to perceive a change or variation.

Last updated: March 20, 2024 • 1146 views

won't know the difference

This phrase is correct and commonly used in English.

This phrase is used when someone is unable to distinguish between two things or options.

Examples:

If you use the cheaper brand, I won't know the difference.
She won't know the difference between the two fabrics.

Show examples from the web [+]

You Won't Know the Difference So You Can't Make the Choice. says Robin Beck. Which pill, red or blue? I propose that it does not matter which pill one takes ...
Mar 4, 2014 ... By The Time Your Car Goes Driverless, You Won't Know The Difference. Updated March 20, 20149:23 AM ET Published March 4, 201411:00 ...
Cato, play with my head. I won't know the difference. If we're living in the novelist or statistician. Cato, mess with my concepts, my inner vision. Like a strobing ...
May 9, 2007 ... 9mm - You Won't Know the Difference. Tahoe1LT. SubscribeSubscribed Unsubscribe 1010. Loading... Loading... Working... Add to ...

Alternatives:

won't be able to tell the difference
won't be able to distinguish the difference
won't be able to differentiate
won't be able to perceive the difference
won't be able to recognize the difference

won't notice the difference

This phrase is correct and commonly used in English.

This phrase is used when someone is unable to perceive a change or variation in something.

Examples:

If you change the recipe slightly, most people won't notice the difference.
I switched the paintings, but she didn't notice the difference.

Show examples from the web [+]

Gluten-Free Chocolate Dessert Recipes So Exquisite, You Won't Notice The Difference. 10/07/2014 07:00 am ET | Updated Oct 10, 2014. Kate Bratskeir Editor ...
You Won't Notice the Difference Anyway. « Previous. /. Next ». By Sonya Polskaya / 23.03.2012 / Projects. According to public opinion, the parliamentary ...
You Won't Notice the Difference;v *. But Sher-W: '. Smaller balloon size for more consistent results and uniform necrosis of endometrial tissue. X/. Thinner ...
Nov 27, 2015 ... The farther away you sit, the less the extra pixels matter, as your eyes won't notice the difference. Conversely, the bigger the screen you have, ...

Alternatives:

won't perceive the difference
won't detect the difference
won't realize the difference
won't spot the difference
won't pick up on the difference

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won't know the difference vs won't notice the difference