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Hi, today we are going to talk about prefixes.

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What is a prefix?

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A prefix is a word part added in front of a base word to change the meaning.

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Here we have five different examples of prefixes.

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The first prefix is pre-, which means before.

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For example, pre-adolescent, which means before the adolescent.

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The second prefix is "-and". That means not. For example, if we add "-and", and welcome,

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means that you are not welcome.

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The third prefix is "-non". In this case, non-sleep means, again, that you don't sleep.

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The fourth prefix is "-uni". Uni means that it's only one, like in the example unicellular.

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The last prefix is trans, which means across.

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For example, transatlantic, across the Atlantic.

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Bye!

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Thanks for listening to us.