pig
The word 'cochon' is used to refer to a pig in French. It is often used in conversations about farm animals and food.
I love the pig.
The phrase is used to express affection for the pig as an animal. Note that in French, the definite article ('le' in this case) is often used where it would be omitted in English.
The pig is in the farm.
This sentence is indicating the location of the pig. The preposition 'dans' is used to indicate 'in' in English. 'La ferme' translates to 'the farm'.
The pig is an intelligent animal.
This sentence is attributing the characteristic of intelligence to the pig. Adjectives (like 'intelligent') generally come after the noun they describe in French, unlike in English.