Call (someone) back = to return a phone call (वापिस फ़ोन करना )Call me back whenever...

Gung Ho - अति उत्साहीKowtow - घुटने के बल झुक कर प्रणाम...

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A noisy and aggressive speech before a long gathering -- Harangue (उग्र, प्रभावशाली...

A murder of crows A cloud of jellyfish A glaring of cats A flurry of flamingos A pandemonium of parrots...