Friday, April 28, 2017

hyphen

A hyphen is used to create compound words. Often, the two words joined by the hyphen act as an adjective that describes a noun in the sentence.

However, you don’t need a hyphen to join the word very or an adverb ending in -ly to another word (very pretty flowers, oddly dressed man).

When an age or a period of time is used as an adjective before a noun, use two hyphens (my two-year-old son), but leave the hyphens out if the noun comes first (he is two years old). Both cardinal and ordinal numbers may be part of a compound word (one-time pass, first-year student).

Incorrect Clara finished a 400 page book last week.
Correct Clara finished a 400-page book last week.

Incorrect Jake served on a nuclear powered submarine.
Correct Jake served on a nuclear-powered submarine.

Incorrect My ten year old brother loves dinosaurs.
Correct My ten-year-old brother loves dinosaurs.


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