semi gloss, satin, flat?????

[jbakerinc]

im painting some things black on the truck. and wondered if semi gloss and satin are the same. i painted my grill semigloss and was going to pick up some of the krylon fusion to paint the bumer plastic peices but they dont have semigloss that i saw anyway and was wondering if satin would look the same????

 

[Ranger Sport Honduras]

semi gloss and satin look like the same, flat is just plain black, like primer
i choose satin