noun which may take the genitive case particle 'no', noun
immediately adjacent; right next to
Describes something being directly next to another thing, with no space in between. Often used with の to modify a noun.
彼の家は私の家の真隣だ。
His house is right next to mine.
真隣の席に座っている人は誰ですか。
Who is the person sitting in the seat immediately next to me?
Compound of 真 (ま, 'true, just') and 隣 (となり, 'next door'), emphasizing direct adjacency.