建筑者用英语叫做"builder"。
来源：这个词源自中世纪英语"byldan"，意思是"建造"或"建设"。这个词最早出现在14世纪中期，当时在英国用来指建筑工人或建筑商。随着时间的推移，这个词开始更多地用于指建筑公司或其他专业建筑机构。
例句：
The builder promised to finish the construction of the building by the end of next month. (建筑者承诺下个月底前完成建筑物的建造。)
I was impressed by the skill of the builder who built this beautiful house. (我对这个美丽房屋的建造者的技能印象深刻。)
The builder has been fined for not following the safety regulations during the construction. (建筑者因未遵守建筑施工期间的安全规定而受罚。)