They play hide-and-seek in the park.
Meaning: This means that they are engaging in a game of hide-and-seek in a park.
Choice of Words: Play means to have fun and enjoy oneself, often with a game or activity. Hide-and-seek is a game in which one person hides and the others try to find them. Park is a public area with trees, grass, and often a playground. When you put them together, "they play hide-and-seek in the park" means that they have fun and enjoy themselves with a game in which one person hides and the others try to find them in a public area with trees, grass, and often a playground.
Alternative Expressions
Related Expressions