to cry out: to raise a loud, urgent shout wrung out by distress, danger, grief, or wrong
This is the loud, involuntary cry that a person makes when something is unbearable. It is not calm speech and not quiet prayer; it is the sound that breaks out of someone in pain, in danger, or under injustice, often at the top of the voice and often as a single sharp shout.
Its most frequent and most important use is the cry of a suffering people to God. Again and again Israel, crushed by oppressors or by their own trouble, cries out to the LORD, and the cry itself becomes the turning point: God hears it and sends rescue. The same verb covers the cry of a single person in grief or terror, the wail of a city or a whole land facing ruin, and even the cry of injustice that rises from wronged people, unpaid workers, or the very ground beneath a guilty owner.
The senses below are the same basic cry aimed in different directions: upward to God for help, outward in raw distress, or against a wrong that demands to be answered. What holds them together is volume and urgency. A whisper is never this word.