helicopter
The French word 'hélicoptère' is a masculine noun. It is used in the same way as 'helicopter' in English. For example, 'Le hélicoptère est dans le ciel' means 'The helicopter is in the sky'.
He pilots the helicopter with expertise.
This is a simple sentence showcasing someone piloting a helicopter, the use of the masculine pronoun 'Il' suggests that the subject of the sentence is a man. 'Avec expertise' implies that he pilots it very skillfully.
The helicopter lands gently on the runway.
This sentence displays a scenario of a helicopter landing on a runway. 'Atterrit' is the verb that signifies the landing of a plane or helicopter, and 'piste' is the word commonly used for a runway.
We saw a helicopter flying over the city.
This sentence describes a scenario where the speakers saw a helicopter flying over the city. 'Survoler' is a verb meaning to fly over, and 'ville' represents a city.