Food; foodstuffs—things eaten for nutrition.
冷蔵庫に食べるものがほとんどなく、食を買いに行った。
There was almost nothing to eat in the fridge, so I went to buy food.
食品（しょくひん）の表示をよく確認してから買う。
Check the labeling on food products carefully before buying.
彼女は和食が好きで、和食の食文化に詳しい。
She likes Japanese cuisine and knows a lot about its food culture.
Eating; appetite—the act of eating or the desire/ability to eat.
朝はいつも食欲がなく、あまり食が進まない。
I usually have no appetite in the morning and don't eat much.
彼は風邪で食欲が落ち、あまり食が入らない。
He lost his appetite because of a cold and isn't eating much.
緊張しているときは食が細くなる人が多い。
Many people lose their appetite when they're nervous.
A meal or a serving; used to count meals (e.g., 'one meal', 'three meals a day').
ダイエット中で、一日に三食はきちんと食べるようにしている。
While dieting, I make sure to eat three proper meals a day.
非常食として一食分のレトルトを用意しておいた。
I prepared one ready-made meal as emergency food.
朝は忙しくて一食抜くことが多い。
I'm often busy in the morning and skip a meal.