いわゆるWhat is commonly called
いわゆる goes directly before a noun to present it under a familiar or conventional label. It is often neutral, though a skeptical context can make the speaker sound distanced from the label.
Invoking a familiar label
いわゆる does not normally introduce a brand-new name. Instead, it signals that the following noun is a category or expression already used by people generally. Depending on the sentence, natural English may use “what is commonly called,” “the familiar category of,” or simply the label itself.
A neutral category
この地域は、いわゆる限界集落の一つだ。
This community is one of the places commonly described as marginal villages.
AnalyzeThe expression neutrally places the area in a recognized social category; it does not question the label.
Optional distancing
彼はいわゆる専門家だが、実務経験はほとんどない。
He is a so-called expert, but he has almost no practical experience.
AnalyzeHere the second clause openly challenges the label, so the skeptical English “so-called” is appropriate. Without that context, the same form could be neutral.
More examples
この小説は、いわゆる成長物語として読むことができる。
This novel can be read as what is commonly called a coming-of-age story.
Analyze彼女はいわゆるデジタルネイティブの世代に属している。
She belongs to the generation commonly known as digital natives.
Analyzeその症状は、いわゆる五月病に近い。
Those symptoms are close to what is commonly called the May blues.
Analyzeこの地域は、いわゆる豪雪地帯に含まれる。
This region is included in what are known as heavy-snow areas.
Analyzeこれは、いわゆる成功例としてよく紹介される。
This is often presented as what is commonly regarded as a success story.
Analyzeこの制度は、いわゆるセーフティーネットの役割を果たす。
This system serves as what is commonly called a safety net.
Analyze