Dictionary.com
Thesaurus.com

STI

American  

abbreviation

  1. sexually transmitted infection: any infection that is characteristically transmitted by sexual contact and may either clear up or develop into a sexually transmitted disease.


Etymology

Origin of STI

First recorded in 1990–95

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

The STI ends 0.5% higher at 4416.27, taking gains this year to more than 16%.

From The Wall Street Journal • Oct. 24, 2025

The outreach events are part of a wider public health push to tackle rising STI rates.

From BBC • Sep. 18, 2025

Unpacking STI trends using genomic surveillance could help identify high-risk areas or populations and inform targeted public health strategies to break the chains of transmission.

From Science Daily • Sep. 16, 2023

Money that goes toward STI testing would be cut by 44%, and a mobile dental health clinic that goes to places like schools and jails would lose nearly 20% of its funding.

From Seattle Times • Sep. 14, 2023

XVth century, in the Royal Private Library at Stuttgart, iii 37 ---- 8vo., in the Emperor's private collection at Vienna, iii 386 ---- STI.

From A Bibliographical, Antiquarian and Picturesque Tour in France and Germany, Volume One by Dibdin, Thomas Frognall

Vocabulary.com logo
by dictionary.com

Look it up. Learn it forever.

Remember "STI" for good with VocabTrainer. Expand your vocabulary effortlessly with personalized learning tools that adapt to your goals.

Take me to Vocabulary.com