What about __ vs What if

When to use each in English, with meaning, register, and examples.

What about __

Top 2,000 (common)

What if

Top 1,000 (very common)
Most common: What if
 What about __What if
Pronunciation🇬🇧 //wɒt əˈbaʊt//🇺🇸 //wɑt əˈbaʊt//🇬🇧 //wɒt ɪf//🇺🇸 //wɑt ɪf//
MeaningA phrase used to ask for opinions or suggestions.a way to ask about possibilities or alternatives
ExampleWhat about going to the beach this weekend?What if we try a different approach?
RegisterNeutralNeutral
How commonTop 2,000 (common)Top 1,000 (very common)
CollocationsWhat about dinner?, What about the weather?, What about your appointment?, What about the plan?, What about his suggestions?what if scenario, ask what if, think what if
Antonyms-definitely, certainly, indeed, for sure
Common mistakesOverusing it in formal contexts where a direct question is more appropriate., Using it without appropriate context, making the sentence unclear.Use 'what ifs' incorrectly as a noun., Confuse 'what if' with 'if only'., 'What if' followed by a question mark is unnecessary.
Usage notesUsed in conversation to introduce an idea or suggestion, often when seeking input. Suitable for most informal and semi-formal situations.Use 'what if' to propose questions about potential scenarios. It's common in discussions and brainstorming, but avoid in formal writing.

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What about __
What if

Frequently asked questions: What about __ vs What if

What's the difference between What about __ and What if?

What about __: A phrase used to ask for opinions or suggestions. What if: a way to ask about possibilities or alternatives

Which is more common: What about __ and What if?

What if is the most common in everyday English.

Can you show an example of each?

What about __: What about going to the beach this weekend? What if: What if we try a different approach?

Can I use What about __ and What if interchangeably?

Not always. What about __ and What if are related and overlap in some contexts, but they differ in register, how common they are, and usage, so swapping one for another can change the meaning or tone. Check the differences above before substituting.