noun
A plate attached to a gate or entrance showing the resident's name. Similar to 表札, but specifically for a gate or outer entrance.
See also: 表札 (ひょうさつ)
門標に名字が書いてある。
The family name is written on the gate nameplate.
新しい家の門標を注文した。
I ordered a nameplate for the gate of my new house.
表札 is a general nameplate for a house entrance or door, while 門標 specifically refers to one on a gate or outer entrance.
Compound of 門 (gate) and 標 (mark, sign). The exact historical derivation is uncertain, but the spelling is conventionally associated with a gate sign.