to share or exchange information, news, ideas, feelings, etc.

to have a good relationship because you are able to understand and talk about your own and other people’s thoughts, feelings, etc.

His inability to communicate has damaged their relationship beyond repair.

The novel is about a family who can't communicate with each other.

couples who communicate well with one another

to pass a disease from one person, animal, etc. to another

The disease is communicated through dirty drinking water.

if two rooms communicate, they are next to each other and you can get from one to the other

a communicating door

LEARNit Dictionary