What is the correct word, plugin or plug-in? Does it depend from the context?
Some words are written without hyphens (nonaggression, nonbeliever), and some words are written with a hyphen (well-intentioned). Is there a schema in the use of a hyphen?
Do you capitalize both parts of a hyphenated word in a title? "My Ex-Wife Hates Me" or "My Ex-wife Hates Me"
What are the rules in English language to split words at the end of a line? Where exactly must the hyphen split the word?