The kanji 軒 primarily refers to "eaves" or "a house," specifically the space under the eaves of a building, or by extension, a house itself. It can also be used as a counter word for houses.

・On-yomi (音読み): ケン (ken) ・Kun-yomi (訓読み): のき (noki) - meaning "eaves"

⚫︎一軒家 Translation: a detached house; a single-family home. ⚫︎軒先 Translation: the eaves; the edge of the eaves. ⚫︎何軒か回る Translation: to visit several houses. (using 軒 as a counter word)

The kanji 軒 is a phono-semantic compound (形声文字). The left side is a radical called "車偏" (くるまへん) 車, which originally represented "carriage" or "vehicle," but here it acts as a semantic component. The right side is "干" (かん), which represents "a shield" or "to dry". Initially, it was a pictograph. Over time, the vehicle radical was added to refine the meaning of "building." The character eventually evolved to depict the appearance of a building with eaves.