This is the 1166th most frequent Portuguese word.
apoiar
"To support" or "to assist."
Here, 'apoiar' is used in the sense of offering emotional or moral support.
Eu vou apoiar minha amiga em sua decisão.
I will support my friend in her decision.
In this case, 'apoiar' means to physically sustain or hold something up.
O pilar foi utilizado para apoiar a estrutura do telhado.
The pillar was used to support the structure of the roof.
'Apoiar' here means to place or lean something onto a surface for stability.