schreien
to scream
To produce a loud, inarticulate sound, often in response to strong emotions such as pain, fear, anger, or great joy.
Das Kind schrie vor Schmerz, als es hinfiel.
The child screamed in pain when it fell down.

to scream
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to scream
To produce a loud, inarticulate sound, often in response to strong emotions such as pain, fear, anger, or great joy.
Das Kind schrie vor Schmerz, als es hinfiel.
The child screamed in pain when it fell down.

To state the reason for screaming, the preposition 'vor' with the dative is often used, especially with emotions. The phrase 'aus vollem Hals' (at the top of one's lungs) is also common.
Die Fans schrien vor Freude, als ihr Team das Tor schoss.
The fans screamed with joy when their team scored the goal.
In the meaning 'to produce a loud sound,' 'schreien' (to scream) can often stand alone, without an object or a preposition. This is especially common with babies or in sudden moments of fright.
Als sie die Spinne sah, musste sie laut schreien.
When she saw the spider, she had to scream loudly.
The expression 'schreien nach' (to cry out for) is used figuratively and means that a situation urgently requires a solution. The thing that needs the solution is the subject of the sentence.
Die unübersichtliche Kreuzung schreit nach einer Ampel.
The confusing intersection is crying out for a traffic light.
When colors or patterns are described as 'schreiend' (screaming), it means they are extremely noticeable and garish. This is often intensified with adverbs such as 'förmlich' (practically/literally) or 'geradezu' (downright).
Ihre Jacke war in einem schreienden Orange gehalten.
Her jacket was in a screaming orange.
to call
'rufen' and 'schreien' can both mean that someone is speaking very loudly. But 'rufen' is often more targeted: you call out a name, a request, or a short message so that someone hears it. 'schreien' sounds stronger and more emotional. It fits fear, pain, anger, or when someone is speaking extremely loudly. Learners may confuse the words because both are loud. As a guide: if the message is important but not necessarily emotional, 'rufen' usually fits. If the volume or the feeling is the main focus, 'schreien' fits better.

Vor Schreck hat das Kind laut geschrien.
The child screamed loudly in fright.
Am Bahnsteig ruft die Mutter ihrem Kind noch schnell etwas zu.
On the platform, the mother quickly calls something out to her child.