O que é jars? O que é jars? A cylindrical glass or earthenware vessel with a wide mouth and usually no handles.The amount that a jar can hold.Chiefly British A glass of beer. To cause shaking or vibrations: The ride over the old road was jarring. To shake or vibrate from an impact or impacts:"The gallery jarred with a quick, heavy tramp"(Robert Louis Stevenson).To be disturbing or irritating; grate: The incessant talking jarred on my nerves.To be out of harmony; clash or conflict: The curtains jar with the rest of the room.To cause to shake or vibrate from impact: The ride on the donkey jarred my bones.To startle or unsettle; shock: The alarm jarred him out of sleep.