Skip to content
Word ChallengeWord Challenge

Infection

9 lettersnouncommon

Updated February 2026

Definition

The invasion and multiplication of microorganisms such as bacteria, viruses, or parasites in body tissues, causing disease. It can also refer to the state of being infected or the process of infecting.

The doctor prescribed antibiotics to treat the bacterial infection in her throat.

Related Words

Word Game Tips

🟩

Wordle

Contains three 'I's, two 'N's, and 'FECT' root; vowel-heavy

🔤

Scrabble

Worth 14 points; good for medical terminology and common letter patterns

Explore Similar Words

Try These Tools

Dictionary References

Look up infection in an authoritative dictionary for full definitions, pronunciation, and etymology.

Word Challenge

Ready to test your word skills?

Download Word Challenge and challenge yourself with our daily word puzzles. Guess the hidden word in six tries or fewer!

Download Free