line break
US /ˈlaɪn breɪk/
UK /ˈlaɪn breɪk/

1.
the point at which a line of text or a paragraph is divided, especially when it occurs automatically at the end of a line on a screen or printed page
:
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Make sure to add a line break after each paragraph for better readability.
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The software automatically inserts a line break when the text reaches the end of the display area.