(2channel slang, Internet slang) exclusively lurking

(colloquial) Contraction of 見ている (miteiru).

所見: (Classical Japanese, archaic) to be seen, be found

prying eyes; people who may be watching / the quality of being perceptive, observant / appearance, look

forehead

Obsolete spelling of フィラデルフィア (“Philadelphia”)

a placename, especially the city of Aioi in Hyōgo Prefecture / a surname

mutual, together, each other / used in official or epistolary writings for elegance or politeness

mutual, together, each other, meeting

Short for 合い服 (あいふく, aifuku, “clothing worn in spring or autumn”).