This is the 1628th most frequent Chinese word.
界
Boundary; realm; scope; world.
The word "界" is used here to mean 'realm' or 'domain', indicating a specific field of expertise or area of knowledge, in this case, the scientific community.
科学界对于这个现象提出了许多不同的解释。
The scientific community has proposed many different explanations for this phenomenon.
The word "界" refers to a specific professional or hobbyistic field, in this instance, the field of photography.
他在摄影界是一个很有名的人物。
He is a famous figure in the photography community.
Here, "界" denotes a community or collective associated with a particular interest or industry, specifically the gaming world in this case.