What is the meaning of Hyphenate?

to break a word at the end of a line according to the hyphenation rules by adding a hyphen on the end of the line.

to join words or syllables with a hyphen.

A person or object with multiple duties, abilities or characteristics, such as "writer-director", "actor-model", or "singer-songwriter".

A person whose ethnicity is a multi-word hyphenated term, such as "African-American".

Source: wiktionary.org