This is the 15617th most frequent Korean word.
보루로
"보루로" is not a standalone word but appears to be a form derived from "보루," meaning "fortress" or "bastion," combined with a particle like "로," meaning "toward" or "as." It can mean "as a fortress" or "toward a bastion," depending on context.
In this sentence, '보루로' refers to 'as a fort' or 'using a fort', indicating that '보루' (fort) is being utilized to form a defensive line, shown by the particle '로'.
보루로 방어선을 구축했어요.
A defensive line was established using a fort.
Here, '보루로' means 'as a fort', suggesting that the walls serve the function of a fort, emphasizing their role in strengthening the building.
건물의 보루로 벽을 강화했어요.
The walls were reinforced as a fort for the building.
In this instance, '보루로' depicts utilization of a 'fort' to carry out the action of resistance, specifying the method or tool used in the effort.