output: A hyphen that is invisible unless the word falls at the end of the line, in which case the computer will break the word and show the hyphen.

A specially coded hyphen which is only displayed when formatting of the hyphenated word puts it at the end of a line.

A hyphen at which line wrapping may occur. When inserted at any point in a word, ensures that a hyphen followed by a new line will be inserted at that point should a line break be required anywhere within the word. If no line break is required in the word, no hyphen will be displayed. See also: hard hyphen