three-way
adjectiveUK /ˌθriː ˈweɪ/
US /ˌθriː ˈweɪ/
Something that involves three people or three parts.
The three friends had a three-way call on the phone.
OTHER MEANINGS
2. A road or junction where three roads meet.
Turn left at the three-way junction.
3. A meeting or conversation among three people.
We set up a three-way meeting with the teacher and parents.
4. A contest or arrangement involving three sides.
The three-way race for class president was exciting.