riflemanPronunciation: /ˈrʌɪf(ə)lmən/Definition of rifleman noun (plural riflemen) 1a soldier armed with a rifle, especially a private in a rifle regiment. a person skilled at using a rifle. 2a very small, short-tailed, greenish-yellow songbird which feeds on insects on tree bark, native to New Zealand. [perhaps so named from a comparison between its plumage and an early military uniform]Acanthisitta chloris, family Xenicidae rifleman in other Oxford dictionaries Definition of rifleman in the US English dictionary