Why hyphenate tags? [duplicate]

1. What's the use of hyphen?
2. What does a dash between words mean?
3. What is hyphen in HTML?
4. How do you break a word with a hyphen?

What's the use of hyphen?

The hyphen (-) is a mark that joins words or parts of words and is placed directly between letters and with no spaces.

What does a dash between words mean?

A hyphen joins two or more words together while a dash separates words into parenthetical statements.

What is hyphen in HTML?

U+00AD (SHY) An invisible, "soft" hyphen. This character is not rendered visibly; instead, it marks a place where the browser should break the word if hyphenation is necessary. In HTML, use &shy; to insert a soft hyphen. Note: When the HTML <wbr> element leads to a line break, no hyphen is added.

How do you break a word with a hyphen?

Divide a hyphenated word at the hyphen (with the hyphen remaining on the first line). For example: mother-|in-law or mother-in-|law but not mo-|ther-in-law. Do not divide a word at the end of the page so that the second part starts a new page.