noun

• The act of vibrating or the condition of being vibrated.
• (physics) Any periodic process, especially a rapid linear motion of a body about an equilibrium position.
• A single complete vibrating motion.
• (parapsychology) A vibrational energy of spiritual nature through which mediumistic and other paranormal phenomena are conveyed or affected.
• (by extension, slang, often in the plural) An instinctively sensed emotional aura or atmosphere.