waterproof
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waterproof
Made in such a way that no water can get in. Often refers to clothing, watches, or electronic devices.
Meine neue Jacke ist absolut wasserdicht, selbst bei starkem Regen.
My new jacket is completely waterproof, even in heavy rain.
The word is a clear compound of 'Wasser' (water) and 'dicht' (tight/sealed). Here, 'dicht' means 'closed' or 'impermeable'. So something is sealed tightly enough that no water gets through.
Für die Wanderung im Regen brauchst du eine wasserdichte Hose.
For the hike in the rain, you need waterproof pants.
In its literal meaning, 'wasserdicht' (waterproof) is often used for clothing, shoes, watches, or technical devices that need to be protected from water.
Mein neues Handy ist zum Glück wasserdicht.
Luckily, my new phone is waterproof.
You can recognize the figurative meaning by the fact that it is about abstract things. A 'wasserdichter Plan' (airtight plan) or a 'wasserdichtes Alibi' (airtight alibi) is so perfect that it cannot be disproven.
Ihre Argumentation war nicht ganz wasserdicht und hatte einige Schwachstellen.
Her argument was not entirely airtight and had some weak points.
dense / tight
'dicht' and 'wasserdicht' both describe that something is not permeable. 'dicht' is more general: it can refer to water, air, or other liquids. 'wasserdicht' is more specific and means only that no water can get in. The words can be confused because a waterproof object is also sealed or leakproof. If water is important, 'wasserdicht' sounds more precise. If it is generally about a leak or about air and liquid, 'dicht' fits better.
Für die Wanderung braucht Mehmet eine wasserdichte Jacke.
Mehmet needs a waterproof jacket for the hike.
Der Deckel ist dicht, und die Suppe läuft nicht aus.
The lid is sealed, and the soup doesn't leak out.