More specifically, the word "montsuki" is used in two different ways: one is the word that means the common kimono with some family crests on itself (or the style of kimono that has some family crests on itself), and the other is the word used as an abbreviation for "montsuki kosode" (a narrow-sleeved kimono for men, emblazoned with family crests).
紋付という言葉には二義あり、一つは紋の入った着物一般もしくは着物に紋が入っていることを指して用い、もう一つは特に男物の紋付小袖の略称として用いる。