meal
The word 'repas' in French is used similarly to 'meal' in English. It can refer to any main eating occasion—breakfast ('petit repas'), lunch ('déjeuner'), and dinner ('dîner'). So, you may use it in French conversations the way you would use 'meal' in an English one.
I prepare the meal for my family.
This sentence depicts an action (preparing a meal), being done by a person (I), for a specific group of people (my family). The word 'repas' is used here to denote the meal that is being prepared.
The evening meal is ready.
In this example, 'repas' refers to a specific meal - the evening meal. The sentence expresses a common phrase which tells us that the evening meal is prepared and ready to be served/eaten.
We discuss during the meal.
This sentence uses 'repas' to describe the time during which a certain activity (discussion) takes place. The act of discussing during the meal is a regular event and makes use of the word 'repas' to describe this activity's customary time frame.