vibration

(noun) the act of vibrating. Synonyms: quiver, quivering.

(noun) a shaky motion. Synonyms: shaking, shakiness, trembling, quiver, quivering, palpitation. Example: "The shaking of his fingers as he lit his pipe."

(noun) (physics) a regular periodic variation in value about a mean. Synonyms: oscillation.

(noun) a distinctive emotional aura experienced instinctively. Synonyms: vibe. Examples: "That place gave me bad vibrations." "It gave me a nostalgic vibe."