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90% of the time, speakers of English use just 7,500 words in speech and writing. These words appear in red, and are graded with stars. One-star words are frequent, two-star words are more frequent, and three-star words are the most frequent.
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I enjoy the constant interaction with people from other departments.
the interaction between mother and baby
Jobs that involve a degree of social interaction are usually more satisfying.
the interaction of these two medicines
the interaction between an organism and its environment
The mechanism seems to involve interactions with other proteins.
This is the British English definition of interaction. View American English definition of interaction.