das Symbol
symbol
An object, sign, or action that stands for an abstract idea, belief, or concept.
Das Herz ist ein universelles Symbol für die Liebe.
The heart is a universal symbol of love.

symbol
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symbol
An object, sign, or action that stands for an abstract idea, belief, or concept.
Das Herz ist ein universelles Symbol für die Liebe.
The heart is a universal symbol of love.

'Symbol' is almost always used with the preposition 'für' (for) and the accusative to describe what it stands for. The structure is: Symbol + für + something.
Die weiße Taube ist ein Symbol für den Frieden.
The white dove is a symbol of peace.
The adjective 'symbolisch' (symbolic) and the verb 'symbolisieren' (to symbolize) are derived from 'das Symbol' (the symbol). All of these words relate to the idea that something stands for something else.
Die Übergabe des Schlüssels war ein symbolischer Akt.
The handing over of the key was a symbolic act.
In its general meaning, 'Symbol' (symbol) often stands for big, abstract concepts such as freedom, justice, power, or hope.
Die Waage ist ein altes Symbol für Gerechtigkeit.
The scales are an ancient symbol of justice.
The meaning 'Zeichen' (sign/character) is typical of specialized language. The context of the sentence tells you whether a mathematical, chemical, or musical symbol is meant.
Das chemische Symbol für Gold ist Au.
The chemical symbol for gold is Au.
sign / symbol
'das Zeichen' and 'das Symbol' can often be very similar when a shape or graphic stands for a specific meaning. 'Zeichen' is the more general word here. It can also be a letter, a digit, a marking, or a punctuation mark. 'Symbol' is used more when something stands for a larger idea, for example peace, love, or a religion. In specialized fields, a symbol can also be a fixed sign. The words can be confused because many symbols are signs. But not every 'Zeichen' is automatically a 'Symbol'.

Die Taube gilt in vielen Ländern als Symbol für Frieden.
The dove is considered a symbol of peace in many countries.
Auf dem Schild sieht man ein rotes Zeichen für Gefahr.
On the sign, you can see a red symbol for danger.