Synonyms:
* She sells seashells by the seashore. The shells she sells are surely the best. (Seashells and shells are synonyms)
* Peter Piper picked a peck of pickled peppers. A peck of pickled peppers Peter Piper picked. (Picked and picked are synonyms)
* Busy, bustling bees buzz by big, bright bluebells. (Busy and bustling are synonyms)
Antonyms:
* The black cat sat on the white mat. The white mat was beneath the black cat. (Black and white are antonyms)
* Up, up, up the hill we go, down, down, down the hill we flow. (Up and down are antonyms)
* Hot, hot, hot the sun did shine, cold, cold, cold the wind did whine. (Hot and cold are antonyms)
Combining Synonyms and Antonyms:
* The tiny, little ant is strong and mighty, but the massive elephant is gentle and kind. (Tiny/little and massive are antonyms, strong/mighty and gentle/kind are synonyms)
Bonus:
* Say "good" but don't say "bad," say "happy" but don't say "sad." (Good and bad, happy and sad are antonyms)
These are just a few examples, you can create your own tongue twisters using synonyms and antonyms! Get creative and have fun with it!