English

• context-free grammar (CFG)
• a formal grammar in which every production rule has a form of n → w, where n is a single nonterminal symbol and w is a sequence of terminals and nonterminals.
• Wikipedia: http://en.wikipedia.org/wiki/Context-free_grammar

German

• kontextfreie Grammatik
• Wikipedia: http://de.wikipedia.org/wiki/Kontextfreie_Grammatik

Dutch

• context-vrije grammatica
• Wikipedia: http://nl.wikipedia.org/wiki/Contextvrije_grammatica

Russian

• контекстно-свободная грамматика (КСГ)
• Wikipedia: http://ru.wikipedia.org/wiki/Контекстно-свободная_грамматика