Let’s say you want to write a title for your web page that includes both the singular and plural form of a word like "Blue Widget, Blue Widgets". How do you achieve this without looking spammy?
SEL suggests a neat solution where you change the order of phrases while keeping both the forms.
So instead of using "Discount Disney Vacation, Disney Vacations" which looks like a case of keyword stuffing, you could say "Disney Vacations – Planning a Discount Disney Vacation" or "Disney Vacations – Find A Discount Disney Vacation Online."