外来词可以通过语言社群类型去观察、研究。语言社群大体可分为三大类：全员社群，母（体）社群，子（体）社群。从不同角度又可分为中心社群和地方社群，主居社群和客居社群。台湾的语言社群类型属于特殊的地方社群，它的独特性在外来词的类型和数量的某些方面得到体现。 Loanwords can be observed and studied through language community types. Language communities can be broadly divided into three categories: full community, mother (community), sub (community) community. From different angles can be divided into the central community and local communities, the main community and the guest community. Taiwan’s linguistic community type belongs to a special local community whose uniqueness is reflected in some aspects of the type and quantity of foreign words.