Tuna Fish is actually Tuna Salad. You would order a tuna fish sandwich (tuna salad), but you would not go to a restaurant and say “I will have the tuna fish” because that is just tuna.
Also if I’m walking up to a sandwich shop or a restaurant that serves tuna steaks on a grill or something of the sort and say “I’ll have the tuna” the assumption is, they know I what I mean (variance for multiple dishes not included).
Tuna is just the dish, tuna on a plate.
Tuna Fish is actually Tuna Salad. You would order a tuna fish sandwich (tuna salad), but you would not go to a restaurant and say “I will have the tuna fish” because that is just tuna.
If I want the tuna salad, I’ll order tuna salad.
Also if I’m walking up to a sandwich shop or a restaurant that serves tuna steaks on a grill or something of the sort and say “I’ll have the tuna” the assumption is, they know I what I mean (variance for multiple dishes not included).