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Sentences you can trust
Search and find correct usages for words or phrases in high-quality sentence examples.
Read the bigger context
Get the bigger context by clicking on the extend button. If that is not enough, just click on the source link to navigate to the real source article.
Compare words and phrases
Compare words or phrases and construct comparison graphs by putting 'VS' between them.
Find the missing word
Use the asterisk symbol to find the missing words between words and sentences.
Check use over time
Sometimes you just need to understand how relevant the words or phrases are to today. Click on the use over time button to see the graph starting from the 19th century.
Get the meanings, synonyms, and antonyms for words and phrases with our built-in dictionary.
Text to speech
You can listen to your input or high-quality sentence examples with our text-to-speech functionality. It also works in extended contexts.
Translate to more than 80 languages
If high-quality sentence examples are not enough, you can always translate your input to any language.
Write better English!
Improve the quality of your English with lengusa.
lengusa is the first machine learning-powered sentence search engine online. Its cluster of background services constantly collects, sanitizes, indexes, and orders sentences with state-of-the-art algorithms and machine learning routines.
Only the highest quality sources
lengusa only uses high-quality sources and peer-reviewed articles online. It constantly refreshes its database and deprecates low-quality sentences.
Make the internet work for you
Instead of doubting your usage, or the sentence examples you find, let lengusa's machine learning routines do the work for you. Internet is full of correct and reliable sentences and lengusa is here to let you find them.
Constantly improving sentence search routines
State of the art algorithms
Developed with linguists
Over 300 million sentences
lengusa allows you to search over 300 million examples of proper English sentences
High-quality news sources
Only respected news sources. No tabloids.
Peer-reviewed science articles
Only sources from well-established science repositories
Current, well-known, and trustworthy encyclopedias.