Some words with the letter configuration '---d--a--s' are:
Neither. It is called a neuter (neutral) form.
English: "the key word" is German: "das Kennwort", or "das Schlagwort", or "das Schlüsselwort".
"Das" (with one 's') is one form of the definite article ("the" in English). "Dass" (or "Daß" using the double 's' of German script) is "that," as in "I know that this is true."
Kabir das was a great poet. Kabir das is a name not a word.
The German word for girl is (das) Mädchenor, more regionally, (das) Mädel.
The German word for chicken is (das) Huhn or (das) Hühnchen.
The answer is simply: "What is that supposed to mean?" and is a short form of the question "Was soll (denn) das heissen?" or "Was soll (denn) das bedeuten?"
(Hand) towel = (das) Handtuch (Bath) towel = (das) Badetuch
das Problem
das Schlafzimmer
das Restaurant
das Fenster