What Are Prefix Words? Meaning, Examples & Practice Worksheets

What are Prefix Words?

A prefix is a letter or a set of letters connected at the beginning of a base word to transform its general meaning. For a better understanding of prefix words, we can look at the most basic example of the word 'prefix' itself. The word starts with a "pre-", which is a commonly used prefix. Examples of other words include prepare, preview and more.

These words are a crucial part of English grammar and are commonly used in everyday conversation. The prefixes are one of the two affixes that are found in English grammar. Therefore, prefix and suffix words become important to understand. It may help you expand your vocabulary and comprehension.

When to Use Prefixes?

Just like learning prefix words in English is effortless, understanding when to use them can enhance your understanding of the topic. So, let's look at some meaningful uses of Prefixes.

Making Language Meaningful

In English grammar, one of the most common uses of prefixes is to trim phrases into single words and make conversation more logical and meaningful. Let's understand this with an example.

• Jacob is quite aware of himself
• Jacob is self-aware

Look how the prefix "self" made the sentence more logical and sound.

Academic Disciplines

The use of prefix words is also helpful and valuable in academic fields. You can use a prefix word to categorise between subjects; confused, right. Let's understand with the help of examples.

• Bio - Biology
• Geo - Geology, Geography
• Therm- Thermodynamics
• Eco- Economics, Ecology

Creating Antonyms or Opposite Meaning

Isn't it amazing that you can also use prefixes to create a word opposite to the base word? Yes, you read it right, we can use some prefix words for creating opposites. Prefixes like 'un', 'in', 'non', and 'anti' can change adjectives to their opposite meanings. Let's understand this with some examples.

• Able: Unable
• Complete: Incomplete
• Known: Unknown
• national: Anti-national

With these examples, it is quite explanatory that prefix words are used to make an antonym or opposite word. But, have you noticed above, in the last example, we have used a hyphen to add a prefix word? If so, now you might be wondering when to add a hyphen and when to avoid it. No worries, continue reading to get answers to your questions.

Also Read About: degree of comparison

Prefixes and Hyphens

Until now, you might have figured out the meaning of prefixes and when to use them in English. However, the most confusing part is when to use hyphens after them. In simple terms, there are a few prefix words that use hyphens, while some don't use them. So, let's look at some rules to understand in detail.

• Use a hyphen while using the prefixes 'all', 'ex', and 'self'. However, ensure the prefix 'ex' has two meanings, use a hyphen while the context is in the past.
• Add a hyphen for a prefix with a proper noun. However, the word transatlantic is unique, it doesn't follow the guidelines of proper nouns.
• Make sure to use a hyphen to avoid placing the same vowels together. However, there are exceptions like the vowel O doesn't require a hyphen. For example, cooperate,

Examples of Prefix Words

In English Grammar, there are more than 100 prefix words that are used to get a new word. So, to enhance your understanding of the topic, let us look at the commonly used prefix words list in English grammar.

In- prefix words

Some examples of 'in 'prefix are -

• Illogical
• Intolerant
• Irrelevance
• Infinite
• Informal
• Indiscipline
• Immorally
• Inform
• Indoor
• Infant

Dis- prefix words

Some examples of 'dis' prefix include-

• Disappear
• Disadvantage
• Disconnect
• Disagree
• Disappoint
• Disable
• Discomfort
• Disability
• Discover
• Dishonest

Un- prefix words

A list of words having 'un' prefixes are

• Unable
• Unlike
• Undue
• Unpaid
• Unlawful
• Unused
• Unwanted
• Unemployed
• Unusual
• Unstable

Anti- prefix words

Some of the words having 'anti' are:

• Antisocial
• Anticlockwise
• Anti-ageing
• Antibiotic
• Anti-climax
• Anti-inflammatory
• Antidote
• Antiseptic
• Anticipate
• Antioxidant

Im- prefix words

Some examples of 'im' prefix are -

• Immature
• Impact
• Impossible
• Image
• Imperfect
• Immortal
• Impatient
• Implement
• Imaginable
• Imagination

Miss- prefix words

The list of words having 'miss' as a prefix is:

• Missile
• Missed
• Missaid
• Missionary
• Mission
• Misspell
• Missaying
• Missive

Pre- prefix words

Some examples of words having 'pre' as a prefix are:

• Prepare
• Prevent
• Precise
• Precaution
• present
• Preregistration
• Preview
• Predict
• Preheat
• Prejudice

Sub- prefix words

A list of words with 'sub' as a prefix is:

• Submarine
• Subordinate
• Subway
• Subscribe
• Submit
• Substitute
• Subdue
• Subsequent
• Suburb
• Submerge

Post prefix words

Examples of words having 'post' as a prefix are:

• Postgraduate
• Post-war
• Postpone
• Postscript
• Post-meridian
• Post-operative
• Postage
• Post-Reformation
• Postman
• Poster

Multi- prefix words

Some examples of words with the prefix 'multi' are:

• Multicellular
• Multicellular
• Multidimensional
• Multilateral
• Multimillionaire
• Multiplex
• Multitasking
• Multivitamin
• Multiply
• Multipurpose

Also Learn: Synonyms

Practice Worksheet

While you have understood the prefix words meaning with their uses in various contexts, it’s time to check your knowledge with the given exercises below. 

Exercise 1 – Fill in the Blanks Using Correct Prefix

In this exercise, you have to complete the sentences using an appropriate prefix.

1. His explanation was completely _______ (un, mis, in) accurate, and everyone was confused.
2. The weather forecast was _______ (un, dis, mis) leading, and many tourists were caught off guard.
3. I will have to _______ (re, un, dis) place the clothes on the cupboard when I'm done cleaning it.
4. The cafe is _______ (un, dis, in) open on Sundays, so I can visit it later.
5. He was very _______ (un, mis, in) patient during the match and didn't wait for the final result.
6. Our boss was _______ (un, dis, in) happy with the outcomes of the investment.
7. I need to _______ (re, un, dis) activate my account before I can use the features of the new update.
8. The service team _______ (re, un, dis) connected the wire to the device after resolving the issue.
9. The manager told us to _______ (re, un, mis) work on the project because we made some mistakes.
10. Alex was feeling ______ (un, dis, in) motivated to work on the new project.

Answer for Exercise 1

1. His explanation was completely inaccurate, and everyone was confused.
2. The weather forecast was misleading, and many tourists were caught off guard.
3. I will have to replace the clothes on the cupboard when I'm done cleaning it.
4. The cafe is unopen on Sundays, so I can visit it later.
5. He was very impatient during the match and didn't wait for the final result.
6. Our boss was unhappy with the outcomes of the investment.
7. I need to reactivate my account before I can use the features of the new update.
8. The service team reconnected the wire to the device after resolving the issue.
9. The manager told us to rework the project because we made some mistakes.
10. Alex was feeling unmotivated to work on the new project.

Exercise 2 - Match the Prefix with Correct Word

In the exercise, you have been given a prefix in one column and base words in another column, your task is to match the prefix with a suitable base word to create a new term.

Answer for Exercise 2

1. Dis + Organised = Disorganized
2. In + Appropriate = Inappropriate
3. Dis + Appointed = Disappointed
4. Re + Appear = Reappear
5. Un + Happy = Unhappy
6. Pre + Fix = Prefix
7. Im + Possible = Impossible
8. In + Complete = Incomplete
9. Mis + Understanding = Misunderstanding
10. Re + Think = Rethink

Conclusion

To sum up, prefix words are crucial grammar elements that allow us to alter the meaning of existing words. Learning the use of prefixes can be of great help to you because they expand language, and enhance understanding. Further, by solving the given practice worksheet, it will be ensured that all your doubts related to the topic are cleared. Additionally, to learn important grammar elements like consonants, prepositions and more or to enhance your understanding of the English language, you can explore our other blogs or connect with our experts for free. So, go ahead and enjoy learning.

FAQs

What is the difference between a prefix and a suffix?

A prefix is a short syllable added to the beginning of a word to modify its meaning. On the other hand, the suffix is also a short syllable but it is added to the end of a base word. Together, both are categorised as affixes in English grammar.

Can a prefix change the part of speech of words?

In general terms, prefix words do not change the part of speech of a word. Prefixes only modify the meaning of the word.

Are prefixes used in everyday conversations?

Yes, prefixes are of great use in day-to-day conversations. While they are a common part of the English language, people use these words without even noticing much.

How can I learn more prefixes?

The best way to learn prefixes is to explore various learning activities like engaging in interactive notebooks. Reading new texts will help you discover new prefixes.