Differences between Shirt & T-shirt.

“Shirt” is a general word for clothes you wear on the top part of your body.

The word “shirt” is a category. There are many different types of shirt.

TYPES OF SHIRT

T-shirt, tank top, blouse, polo, jersey, dress shirt, henley, scoop neck, V-neck, button-down shirt, long-sleeved shirt, short-sleeved shirt, sleeveless shirt, cami, sweatshirt, hoodie

A shirt can be formal or informal.

She's wearing a green shirt.

My brother bought a gray shirt with white stripes.

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“T-shirt” (or “tee shirt”) is one type of informal shirt.

He's wearing a green T-shirt.

She's wearing a red T-shirt

A T-shirt does not have buttons:

A T-shirt does not have buttons.