The movie was interaction.
The polar bear's interaction with a watermelon can be amusing.
There was not much interaction between the dog and the cat when they first met. This sentence works because interaction means more than one thing playing or working together.
The interaction between male and female children is different to when they are adults.
It was interesting to watch the interaction between the children as they played together.
When he's in one of his angry moods, he is truly unfit for human interaction. Watching the interaction between the two, their love for each other is obvious.
The variables are not simply additive; they are interactive.
There is hardly any interaction between them these days.The robot sat patiently, waiting for human interaction.
The plural of interaction is interactions. As in "there were some good interactions today".
the ecosystem is formed by the interaction of a community
My community has and shares human enviroment interaction.
Mutualism is the symbiotic interaction between different species that is mutually beneficial;
Interaction between the different air pollution control technologies is also discussed.