Definition:
an opening is a gap or break in a surface, wall, or object that allows for passage or movement from one area to another. It can also refer to the beginning of a space, activity, performance, or event.
Examples:
1. He discovered an unexpected opening in the fence which they could use as a secret entrance.
2. The opening of the ballet was absolutely breathtaking.
3. They perfected the timing of the opening for the fireworks display.
Tips:
it is important to note that an opening can also refer to the start of a social occasion such as a dinner party or a religious ceremony. Additionally, in certain contexts, it can be useful to use synonyms such as 'passage,' 'opening-up,' 'start,' or 'commencement.'