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RR.1 Learn and spell words with the prefixes con-, over-, and pro-

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What are prefixes?

Prefixes are word parts added to the beginning of a base word. They change the meaning of the word.

Examples:
  • happy → unhappy
  • kind → rekind
  • write → prewrite
Note

A prefix does not stand alone. It always attaches to another word to form a new word.

The prefix con-

The prefix con- means “together” or “with.” It can also mean “completely” in some words.

Examples:
  • connect → to link together
  • contribute → to give together with others
  • confirm → to agree or make certain
Note

When you see con-, think of joining, agreeing, or being with others.

The prefix over-

The prefix over- means “too much” or “above.” It shows that something goes beyond what is usual.

Examples:
  • overcook → to cook too much
  • overlook → to miss noticing something
  • overhead → located above
Note

Be careful! Over- words can mean “too much” (overeat) or “above” (overhead). Always check the context.

The prefix pro-

The prefix pro- often means “forward,” “for,” or “in favor of.”

Examples:
  • protect → to keep something safe
  • progress → to move forward
  • promote → to support or encourage
Note

Think of pro- as moving forward, supporting, or being in favor of something.

Using prefixes in words

When you add prefixes like con-, over-, or pro- to base words, the meaning changes. Knowing these meanings helps you spell and understand new words.

Examples in sentences:
  • We must contribute to the team project.
  • Do not overcook the pasta.
  • Our class made great progress this year.
Note

When spelling words with prefixes, do not change the base word. Just add the prefix in front of it.