Ah, that’s a fun one! The “T” in “T-shirt” actually comes from the shape of the shirt itself.
- When you lay a basic short-sleeved shirt flat, the body and the sleeves form the shape of the letter “T.”
- So it’s literally a “T-shaped shirt” that got shortened to “T-shirt.”
Basically, the name isn’t an abbreviation—it’s just descriptive of the shape. Easy for kids to picture too: spread it out and it looks like a giant T on the table!
If you want, I can give a fun little explanation you can tell your kid that makes it sound extra cool. Do you want me to do that?