Here are 3 examples:
Fried egg, fried rice, fried chicken
All these “fry” are different. If you were to use the “fry” in fried rice to fry an egg, you’d get scrambled egg. Fried chicken is done by submerging it in oil, which you won’t do with fried egg or fried rice.
This post is made from the perspective of a Cantonese/Chinese speaker. We have different words for these different types of “fry” (煎, 炒, 炸 respectively)
(Turns out I did post it in the wrong sub and I didn’t realize, and now I feel very stupid. Photon UI has once again screwed me over. Got mad for no reason.)
There’s also “air fry”, which is just an aggressive convection oven
Usually you need to spray or toss the stuff with a small amount of oil first, or stuff has natural oils. The term is usually for using “another oil” so I would say adding oil would be a must instead of its own oils myself.
I wouldn’t say it’s always true. If i fry a duck breast in a pan only with fat from it’s skin i would still classify it as frying even when all the fat is from the duck breast.