chatterbox

As an adjective talkative

is tending to talk a lot.

As a noun chatterbox is

(informal) one who chats or talks to excess.

As nouns the difference between chatterbox and chatbox

is that chatterbox is (informal) one who chats or talks to excess while chatbox is (internet) a chat room.

As nouns the difference between chatterbox and talker

is that chatterbox is one who chats or talks to excess while talker is a person who talks, especially one who gives a speech, or is loquacious or garrulous.

As nouns the difference between chatterbox and magpie

is that chatterbox is (informal) one who chats or talks to excess while magpie is (soccer) someone connected with , as a fan, player, coach etc.

As nouns the difference between shatter and chatterbox

is that shatter is (archaic) a fragment of anything shattered while chatterbox is (informal) one who chats or talks to excess.

As a verb shatter

is to violently break something into pieces.

As nouns the difference between shatterbox and chatterbox

is that shatterbox is a device for mechanically pulverizing a sample of material, used by scientists while chatterbox is (informal) one who chats or talks to excess.

As nouns the difference between taxonomy and chatterbox

is that taxonomy is the science or the technique used to make a classification while chatterbox is (informal) one who chats or talks to excess.

Chatterbox is a synonym of twitterer.

As nouns the difference between chatterbox and twitterer

is that chatterbox is (informal) one who chats or talks to excess while twitterer is one who, or that which, twitters.