Suffixes -er, -or, and -ness

Suffixes are word endings that change a word's meaning. The suffixes -er, -or, and -ness are common and useful. Adding -er or -or often turns a verb into a noun that describes a person or thing that performs an action. For example, a person who teaches is a teacher. An actor is someone who acts in plays or movies. A refrigerator is a machine that refrigerates food.

Notice that sometimes we use -er and sometimes -or. There is no simple rule for which to use; you usually have to memorize them. However, -or is often used when the root word ends in -t, such as actor, inventor, and translator.

The suffix -ness changes an adjective into a noun. This noun usually describes a state or quality. For example, if someone is kind, they possess kindness. If something is fragile, it has fragility. If a person is aware, they have awareness. The -ness suffix allows us to talk about abstract qualities as nouns.

Understanding these suffixes helps expand your vocabulary and improve your reading comprehension. By recognizing these suffixes, you can often figure out the meaning of unfamiliar words.