Entries on زرزر in 2 Arabic dictionaries by the authors Supplément aux dictionnaires arabes by Reinhart Dozy and Habib Anthony Salmone, An Advanced Learner's Arabic-English Dictionary
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زرزر
زَرْزَرَ
a. Sang, twittered, whistled.
b. Was sore, swollen (eye).
زُرْزُوْر (pl.
زَرَازِيْر)
a. Starling.
b. Thrifty; good manager.