Yiddish can refer to:

• The Yiddish language
• Yiddish dialects
• Yiddish morphology
• Yiddish orthography
• Yiddish phonology
• Yiddish theater
• Yiddish typography
• Yiddish loan words in English
• The National Yiddish Book Center

Further information relating to Yiddish is provided in:

• Hebrew alphabet
• Jewish languages
• Language is a dialect with an army and navy
• Romanization of Hebrew
• YIVO Institute for Jewish Research

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