What the advertisement promotes
Use “for” to identify the thing being advertised.
The noun “ad” usually takes different prepositions depending on meaning. “Ad for” is common for products or events, while “ad in” and “ad on” often describe location or medium.
Use “ad for” to say what something advertises. Use “ad in” for print or publication context and “ad on” for TV, radio, or online platforms. “Ad with” usually introduces a feature or detail, not the advertised thing itself. “Ad of” is uncommon and usually not idiomatic for this meaning.
These forms are not interchangeable. Choose the construction by meaning, not by which preposition appears most often.
Use “for” to identify the thing being advertised.
Use “in” with newspapers, magazines, or printed publications.
Use “on” for television, websites, apps, or social media platforms.
Use “with” to mention a feature included in the ad.
The same subject can take different constructions because each sentence answers a different question.
Some combinations appear in real text but do not mean what learners often assume.
English normally uses “for,” not “of,” to identify what an ad promotes.
✕ an ad of the new model ✓ an ad for the new modelUse “on” for platforms and “for” for the advertised item.
✕ an ad on a new shampoo ✓ an ad for a new shampoo“With” describes features inside the ad, not the advertised product.
✕ an ad with cheap flights ✓ an ad for cheap flightsChoose the expression that matches the intended meaning.
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It is usually unnatural when talking about advertisements. English normally uses “ad for.”
Use “in” for publications such as newspapers and magazines. Use “on” for TV, radio, websites, and apps.
Yes. It describes something included in the advertisement, such as “an ad with humour.”
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