Mayo vs Mayonnaise vs Sauce

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

Mayo

Top 3,000 (common)

Mayonnaise

Top 3,000 (common)

Sauce

Top 1,000 (very common)A2noun
Most common: Sauce
 MayoMayonnaiseSauce
Pronunciation🇬🇧 //ˈmeɪəʊ//🇺🇸 //ˈmeɪoʊ//🇬🇧 //meɪəˈneɪz//🇺🇸 //meɪəˈneɪz//🇬🇧 /["/sɔːs/"]/🇺🇸 /["/sɔːs/"]/
MeaningA creamy sauce made from oil, egg yolks, and vinegar or lemon juice.A thick sauce made from oil and egg yolks.A liquid used to add flavor to food.
ExampleI like to add mayo to my sandwiches.I love adding mayonnaise to my sandwiches.tomato/cranberry/chilli sauce
RegisterNeutralNeutralNeutral
How commonTop 3,000 (common)Top 3,000 (common)Top 1,000 (very common)
CEFR level--A2
Part of speechnoun
Collocationsadd mayo, mayo dressing, mayo dipadd mayonnaise, mayonnaise dressing, mayonnaise jar, homemade mayonnaise, mayonnaise sandwichthick, thin, buttery, make, prepare, reduce, boat, bottle, in sauce, with sauce
Antonyms--plainness, blandness, dryness
Common mistakesConfused with 'mayonnaise' - 'mayo' is informal., Adding 'the' before 'mayo' when it's uncountable., Mispronouncing as 'may-o' instead of 'may-oh'.Sometimes confused with other condiments like aioli or ranch dressing., Spelling mistakes, such as 'mayonaisse'.Confusing 'sauce' with 'sours' which refers to a different culinary concept., Using 'sauce' as a verb incorrectly, which is not standard., Mispronouncing it as 'sos' instead of 'saws'.
Usage notesUsed in casual and formal contexts. Often seen in cooking and dining settings, but may not be appropriate for very formal writing.Commonly used in sandwiches and salads. Often considered casual food, but can be found in gourmet dishes too.Commonly used in cooking and dining. Use 'sauce' for both sweet (like chocolate sauce) and savory (like tomato sauce) dishes. Avoid using in very formal contexts where specific sauces may be needed.

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Mayo
Mayonnaise

Frequently asked questions: Mayo vs Mayonnaise vs Sauce

What's the difference between Mayo, Mayonnaise, and Sauce?

Mayo: A creamy sauce made from oil, egg yolks, and vinegar or lemon juice. Mayonnaise: A thick sauce made from oil and egg yolks. Sauce: A liquid used to add flavor to food.

Which is more common: Mayo, Mayonnaise, and Sauce?

Sauce is the most common in everyday English.

Can you show an example of each?

Mayo: I like to add mayo to my sandwiches. Mayonnaise: I love adding mayonnaise to my sandwiches. Sauce: tomato/cranberry/chilli sauce

Can I use Mayo, Mayonnaise, and Sauce interchangeably?

Not always. Mayo, Mayonnaise, and Sauce 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.