The word is Selbstwertgefühl. It means self esteem
You say "Was ist das?" In German.
Ich muss das machen.
get someone to translate this = Lass das von jemandem übersetzen.
English: "the iron" is German: "das Eisen", "das Bügeleisen", "das Plätteisen", "das Plättbrett", "das Schießeisen".
"Vas is das" is not a correct phrase in any language. It may be a mix of German and English, where "was ist das" in German means "what is that" in English.
English: "the key word" is German: "das Kennwort", or "das Schlagwort", or "das Schlüsselwort".
Meerschweinchen means guinea pig in English.
Das Guden
English: "the silver" is German: "das Silber".
English: "the car" is German: "das Auto".
English: "the alphabet" is German: "das Alphabet".
English: "the calcium" is German: "das Kalzium".