about other neighbours/about the other neighbours.

[englishhobby]

Do we need a definite article here?
My next-door neighbours gossip a lot about (the) other neighbours.

 

[MikeNewYork]

No, the article is optional. I would omit it.

 

[Odessa Dawn]

Why do we have the word gossip enclosed inside parenthesis, please?

 

[MikeNewYork]

Good question.

 

[englishhobby]

Why do we have the word gossip enclosed inside parenthesis, please?

I was in a hurry.) Now it's not.

 

[SoothingDave]

Unless there is one specific "other neighbors." Then "the other neighbors" makes sense.

 

[SoothingDave]

Why do we have the word gossip enclosed inside parenthesis, please?

Parentheses. Plural.

 

[Rover_KE]

I'd say that '...about the other neighbours' means '...about all the other neighbours', and '...about other neighbours' means '...about some of the other neighbours'.