vnitřní nepřítel

== Czech == === Pronunciation === IPA(key): [vɲɪtr̝̊ɲiː nɛpr̝̊iːtɛl] === Noun === vnitřní nepřítel m anim a person or a group of people undermining secretly a larger group to which they also belong or pretend to belong; fifth column Synonym: pátá kolona ==== Declension ====