In English, Sunday is pronounced as "SUHN-dey".
Here are some key points to keep in mind when pronouncing Sunday in English:
1. The first syllable "SUN" is pronounced with a short u sound and a soft n sound.
2. The second syllable "day" is pronounced with a long a sound and a d sound, like the word "daytime".
3. The stress is on the first syllable, so it should be pronounced slightly louder and with a higher pitch than the second syllable.
4. When saying it quickly or in conversation, the final y sound may often be dropped, so it might sound more like "SUN-day" instead of "SUN-dey".
To answer the second question, "How do you say Sunday in English?", as discussed above, Sunday is said as "SUHN-dey" in English. Other languages may have different names for this day of the week, but in English the name remains the same.