A monocot
peaches
A one-seeded fruit with a woody pericarp is called a nut. Nuts are a type of fruit where the seed is enclosed in a hard shell, such as acorns or hazelnuts.
The Avocado only has one seed.
grains
Yes a cherry fruit contains one seed like a peach or a plum.
cypsela
A date or damson
No one calls butter fruit.
Sunflower is commercially cultivated by its single seeded fruits.
Cycads are seeded plants, meaning they produce seeds for reproduction. The seeds are typically found inside cones or fruit-like structures on the female cycad plants.
You can get seedless or grapes with seeds in, if that's any help!
sounds like either a strawberry or perhaps a pomegranate This is a tomato!