Are you writing a text in Spanish (or English), and you want to avoid repeating the same words over and over? The Thesaurus will help you find words that are similar to what you’ve been using (synonyms) and even words that are the opposite (antonyms). 

You can access the Thesaurus on the website and the iOS app by searching for a word in Spanish or English and then selecting the “Thesaurus” tab on the resulting Dictionary page. 

On a mobile device, you may need to scroll through the tabs to reveal the “Thesaurus” tab. To do this, tap and hold your finger on the line of tabs and pull them towards the left side of your screen.

The Thesaurus is available for a wide variety of words, but not all Dictionary pages have a Thesaurus tab. Also, please note that this feature is not available in the Android app yet.


The top section of the Thesaurus page shows synonyms for the word you searched for. These are words that are equal or similar to your word in terms of meaning. The top part of the synonyms section has a dark-blue bar on the left side, which indicates "strong synonyms." These are the closest replacements for your original word. Each rectangle in this section shows the English synonym with its Spanish translation. 

As you scroll down the page, the dark-blue bar will change to a light-blue bar. The words in the light-blue section are related to the word you searched for, but they are not direct replacements for the word.

You can hover your mouse over a rectangle (or tap it on a mobile device) to see both your original word and the synonym you selected used in a sentence. This can help you choose the best synonym for your writing.

If you click a rectangle, the page will change to the Thesaurus section for the word you clicked.


After the synonyms section, there is a new set of rectangles with an orange bar. These are the antonyms, which are the opposite or inverse of the word you searched for.

This section is also divided in two parts, with “strong antonyms” at the top represented by a dark-orange bar and less-related antonyms represented by a light-orange bar. Again, you can hover your mouse over (or tap) a rectangle to see example sentences.

If you click a rectangle, the page will change to the Thesaurus section for the word you clicked.

Multiple Translations

If the word you searched for has multiple translations, then the Thesaurus section will have a synonyms and antonyms section for each of the translations. As you scroll down the page, each new section will be indicated by the translation in black text and its general meaning in green text. For example, the first section on the page for “happy” is based on the translation “feliz”.

After scrolling past the first section, there is a new section for “afortunado”, followed by “contento”.

Not all sections have "strong synonyms", as shown in the  "contento" section above.