lake
The French word for lake is 'lac'. It is used in the same context as in English, referring to a large body of water surrounded by land. For example, 'Le lac est très beau' means 'The lake is very beautiful'.
We spent the day at the lake
This phrase uses the word 'lac' to specify the location where the day was spent. It does not use 'lac' as a suffix and clearly illustrates the use of the word in a simple scenario.
The lake is very beautiful in summer
Here, 'lac' is used to talk about the beauty of the lake in summer. Showing that 'lac' can be used in descriptions and different contexts.
I lost my wallet near the lake
In this sentence, 'lac' is used to indicate the place where the speaker lost his wallet. This example provides an instance of using 'lac' in describing a location related to an event.