revolve

revolve /rɪˈvɑːlv/ verb
revolves; revolved; revolving
revolve
/rɪˈvɑːlv/
verb
revolves; revolved; revolving
Britannica Dictionary definition of REVOLVE
: to turn around a center point or line : rotate
[no object]
[+ object]

revolve around

[phrasal verb]
1 
revolve around (something) : to move around (something) in a path that is similar to a circle
2 
revolve around (someone or something) : to have (someone or something) as a main subject or interest