n.相识的人，熟人；相识；对…有了解；知识，心得

网络解释.相识；熟人；认识；熟悉
词形变化:
复数：acquaintances  
派生词: acquaintanceship  

make the acquaintance of (或 make someone\'s acquain 1 . 结识某人

n.1.同伴,朋友,熟人释义下的同义词

familiar neighbor teammate co-worker fellow worker companion friend chum colleague associate peer crony