Middle age, a noun that means someone is about 40 to 65 years old, is two words (like ice cream) with no hyphen. ... When using the word as an adjective – such as middle-aged – the hyphen appears, though. For example: Los Angeles has many middle-aged singles bars.
Should elementary aged be hyphenated?
So to sum up, you hyphenate an age when it's a noun or when it's a modifier that comes before a noun. The main time you don't hyphenate an age is when it comes after the noun it modifies. Ages are like every other compound modifier that way: you hyphenate them before the noun but not after the noun.
How do you use Middle Ages in a sentence?
1. In the Middle Ages England waged war on France. 2. The plague was greatly feared in the Middle Ages.