Refers to the act of diving or a person who dives, often in contexts like pearl diving or free diving.
noun which may take the genitive case particle 'no', noun
unlicensed; unregistered; unqualified
Describes someone practicing a profession without a proper license, such as a doctor or driver. Often used attributively with の.
Refers to a person who is not part of a particular group or community; an outsider or interloper.
He was an unlicensed doctor.
He is a master free diver and is good at diving.
It's dangerous to be treated by an unlicensed doctor.
You shouldn't take an unlicensed taxi.
In the village, outsiders are quickly noticed.
That reporter is a fraud—he's not really in the industry.
That shop is operating without a license.
部外者 is a neutral, formal word for someone outside a group, whereas 潜り implies that person is improperly posing as an insider.
When 潜り refers to a person (an unlicensed practitioner or outsider), it is counted with 人, as in もぐりが一人いた.
Usually written in kana; the kanji form 潜り is less common and may be confused with other readings.
Kanji form is acceptable but less common; the kana spelling is preferred.
Derived from the verb 潜る (もぐる, 'to dive'). The extended meanings of 'unlicensed' and 'outsider' likely come from the idea of someone operating 'under the surface' or outside official channels.