An entity is something that exists separately from other things and has a clear identity of its own.
例句
...the earth as a living entity...作为一个有生命的实体的地球North and South will remain separate entities within a commonwealth until the year 2000.南方和北方将作为一个政治联合体下的两个独立实体继续存在,直至2000年。
英汉词典释义
n.
实体, 独立存在体, 实际存在物.统一性
The country is no longer one political entity.这个国家不再是一个统一的政治实体了。
英英词典释义
Noun
1. that which is perceived or known or inferred to have its own distinct existence (living or nonliving)