This is the 7543rd most frequent Portuguese word.
oabro
It seems "oabro" is not a standard Portuguese word. Could you clarify or check for spelling?
The word 'oabro' is functioning as a necessary item or entity to accomplish the task outlined in the context.
Eu preciso do oabro para concluir este trabalho.
I need the oabro to complete this work.
Here, 'oabro' takes the role of a noun referring to a specific useful tool.
O oabro é uma ferramenta muito útil.
The oabro is a very useful tool.
In this instance, 'oabro' is identified in a historical context, signifying an item whose invention had a positive impact.