oscillate
ɒsɪˈleɪt
Definitions
1. verb
to move back and forth, often in a regular or repeated motion
“The pendulum oscillated gently in the air.”
2. verb
to be indecisive or uncertain, especially about what to do or say
“She oscillated between going to the party and staying home.”
3. noun
a swinging or vibrating motion, especially one that is regular or repeated
“The oscillation of the guitar strings produced a pleasant sound.”