Vocabulary Building with Synonyms and Antonyms

Vocabulary Building with Synonyms and Antonyms 

Teaching synonyms antonyms

Teaching synonyms and antonyms?

Kids are typically naturals when it comes to using synonyms and antonymseven if they don’t realize it!

Their imaginations get stronger and stronger as they age, and words like “humongous” show up rather than “big” during their stories to give a more dramatic effect. 😉

Although their stories tend to be a bit exaggerated, it’s that type of use of synonyms and antonyms that builds their vocabulary, brings their writing to life, and makes them better readers all around.

To help you help your students continue building their vocabulary, I have a couple synonyms and antonyms teaching resources for you, as well as several activity ideas you can try out during your lessons!

Where do I begin?

Before using any specific activities or lessons that get deep into using synonyms and antonyms, it’s important to just expose your students to the concept and ensure they know the definition of each.

One of my favorite ways to start out this unit began with creating simple sentences for my students and having them replace 1-2 words in each sentence with synonyms or antonyms depending on what we were working on, or both!

For example, a sentence could be – The black cat raced across the street toward the mouse.

For using antonyms, black could be replaced with white, and raced could be replaced with dawdled.

I would recommend your students start by replacing adjectives and verbs, as those parts of speech are the simplest to work with when it comes to using synonyms and antonyms!

Instead of creating sentences yourself, you can also have them work with their own books they’re currently reading and do the exact same exercise!

This is a perfect way to introduce that synonyms and antonyms are already a part of their everyday reading.


Teaching synonym and antonym lesson ideas


Synonym and Antonym Read Alouds

Another fun way to introduce these kinds of words is through read alouds!

Some of my favorite titles for discussing synonyms and antonyms are by Brian P. Cleary.

Here are a few to go along with your unit (All Amazon Affiliate links below):

He has a title to correlate with about any ELA topic you can imagine if you’re on the hunt for more supplemental reading! 🙂


Synonyms and Antonyms for Google Classroom

Once your students have been introduced to the concept and have a foundation of understanding synonyms and antonyms, I recommend moving on to using resources and activities that will strengthen and enhance their understanding of these words.

This Google Classroom resource covers the definitions of both, focuses on sorting pairs of words as synonyms or antonyms, helps identify given words as either, and even provides brainstorming opportunities for students to generate as many synonyms and antonyms as they can from given words and pictures!

I love this resource for teaching synonyms and antonyms because it really takes the “guessing” out of students deciding whether a word or pair of words is a synonym or antonym.

The more they brainstorm and generate words on their own, the more their vocabulary will continue to build!

This resource comes as a PDF with Google Slide capabilities, and includes a teacher guide and answer key

You can find it here!


Synonyms and Antonyms Interactive Notebook

Teaching synonyms antonyms

This interactive notebook comes with tons of word work!

Similar to the Google Classroom resource, this interactive notebook addresses definitions of synonyms and antonyms and then focuses on lots of sorting and brainstorming words and pairs of words to fall into each category.

My favorite part about this notebook, and almost always a student favorite, too, is definitely the pocket sorts!

Your students will be given pairs of words to place in the pocket of synonyms or antonyms.

For example, big and little would be placed in the antonym pocket, small and tiny would go in the synonyms pocket.

There’s something about getting to put the strips of paper directly in the pocket that’s so satisfying for kids – and let’s be real, for adults, too! 😉

If you want to check out the interactive notebook a little closer, you can find it here

Teaching synonyms antonyms

Teaching Synonym and Antonyms Low Prep Activities

Match the Eggs

Some other simple ideas for your unit could include pairing synonyms or antonyms together with plastic eggs or creating shapes in a Google Doc and printing.

If you’re using eggs, one half of the egg should have one word and the other half have another – you can make them synonym or antonym pairs depending on what you’re working on.


Synonym & Antonym Matching Game

If you want to make things even simpler, print a word on one half of any shape and another word on the other half of the shape. 

For example, just cut down the center after printing and have your students pair up the synonyms or antonyms to make whole rectangles!

This is a great activity for early finishers or ELA centers. Laminate to make them last longer.



A good “sound off” is always super fun to play as a review game, too!

Have all of your students sit together in a large circle.

Give one student a word to start with and determine if you’re working with synonyms or antonyms.

After you’ve given them the word and category, the next person must provide another word that’s a synonym or antonym to the starting word, and you work around the circle.

For example, let’s say the starting word is big and you’re working with synonyms.

The next student could say, “huge,” the following student, “gigantic,” and so on until no one can think of another synonym.

Whoever doesn’t come up with another synonym is out! 🙂

It really brings out some competitiveness and creativity, but also allows for some great discussions to be made about vocabulary as a whole class.


The best part about teaching synonyms and antonyms is that there are so many simple activities to implement in your classroom, leaving you the digital resources and interactive notebooks to be convenient assessments or homework assignments! 🙂


I hope these ideas and activities are helpful throughout your whole unit from start to finishEnjoy building your students’ vocabulary and teaching synonyms and antonyms!

If you’re looking for more ways to build vocabulary – I also have a blog post on building vocabulary through root words, prefixes, and suffixescheck it out here.

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