The quick answer
Cumin and caraway are different spices. Cumin is Cuminum cyminum; caraway is Carum carvi. Similar-looking seeds or a translated product name are not enough to identify them. Check the label before seasoning a whole dish.
In this guide
Read the name, not just the picture
Cumin may appear as zira in Central Asian recipes and Kreuzkümmel in German. German Kümmel means caraway. Keep these distinctions in a translated shopping list instead of replacing both with the same word.
Match the aroma to the recipe
Cumin has a warm, earthy character; caraway has a sharper, distinctive aroma familiar in some breads and cabbage dishes. Neither is a neutral stand-in for the other. Start with the spice named by the author.
Check whole versus ground
Whole seeds and ground spices release flavor differently. Do not silently change the form while keeping the same method. Toasting or heating instructions belong to the particular recipe; prolonged heating can burn the spice.
Choose an honest substitution
If the right spice is unavailable, omit it only when the recipe allows or make a clearly labeled variation. Do not present a changed spice profile as identical. Store tightly closed, away from heat and light, and check freshness before use.
A few useful answers
Can I replace cumin with caraway one for one?
Not without changing the flavor. They are different ingredients.
Is black cumin the same spice?
No. A similar common name does not establish botanical identity.
Sources and further reading
Use the full recipe alongside these tips, and follow the stated care and safety limits of your equipment.