1. to communicate or work together with someone or something
Usage: third person singular present tense of ‘interact’
2. to have an effect on each other
Usage: often used in scientific or technical contexts

Examples

• She interacts well with her coworkers.
• The teacher interacts with students during class discussions.
• The medication interacts dangerously with alcohol.
• The software interacts with the database to retrieve information.
• He rarely interacts with his neighbors.
• The two chemicals interact to form a new compound.
• The child interacts naturally with other children at the playground.