suffer
The German word 'leiden' is a verb that translates to 'suffer' in English. It is used to express enduring or experiencing pain, hardship, or distress. For example, 'Ich leide unter Rückenschmerzen' means 'I suffer from back pain'. The word can also be used in a more figurative sense, such as 'Er leidet unter seinem Schicksal', which means 'He suffers from his fate'.
I cannot stand it when it is cold.
The phrase uses the verb 'leiden' in its idiomatic sense of 'cannot stand' or 'cannot bear', followed by the condition that the speaker dislikes (in this case, cold weather).
She seems to suffer from headaches.
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Many people suffer from loneliness.
In this sentence, 'leiden' is used in the context of emotional or mental suffering. The preposition 'an' is used before the condition causing the suffering (loneliness in this case).