Its called a CrossOver Tie.
it is called a continental crossover tie.
The white ball in Snooker is called the "Cue Ball".
It is just called "The Chalk".
The break.
it can be called a spider or a swan
pockets
It is called baize.
A foulmiscue
The stick is known as a cue and each hole is called a pocket.
If you're thinking of the theme tune from the snooker programme "pot black" it's called "Black and White Rag"
A tip, usually made from leather.
A snooker game is called a frame, because of how the Gaelic-speaking Scots would say 'game'. They'd pronounce the G as an FR because G isn't in the Gaelic alphabet, and FR is the closest sound they have. So the 20th century English would (jokingly) call a snooker match a frame, to mock the Scottish.