seesaw
US /ˈsiː.sɑː/
UK /ˈsiː.sɑː/

1.
subibaja, balancín
a long plank balanced on a fixed support, on which two children sit at opposite ends and move up and down by pushing off the ground with their feet
:
•
The children laughed as they played on the seesaw.
Los niños reían mientras jugaban en el subibaja.
•
We need to fix the broken seesaw in the park.
Necesitamos arreglar el subibaja roto en el parque.
1.
2.
oscilar, fluctuar
to alternate between two states or positions
:
•
His emotions seesawed between hope and despair.
Sus emociones oscilaban entre la esperanza y la desesperación.
•
The stock market continued to seesaw throughout the day.
El mercado de valores continuó fluctuando durante todo el día.