Meaning of the word "have a relationship" in English

What does "have a relationship" mean in English? Explore the meaning, pronunciation, and specific usage of this word with Lingoland.

have a relationship

US /hæv ə rɪˈleɪ.ʃən.ʃɪp/
UK /hæv ə rɪˈleɪ.ʃən.ʃɪp/
"have a relationship" picture

Idiom

to be romantically or sexually involved with someone

Example:
They have been having a relationship for over three years.
Is it possible to have a relationship without trust?