The action of repeating or reiterating something in order to fix or retain it in the memory.  Any of various training exercises or activities which are repeated as part of a series or set.

Of the new details he learned he could only retain a few, and those only by continual repetition.

One aspect of getting better is quantity and repetition gives you that. On set or in class the more you repeat, the more practice you have. Repetition is often boring and tiring.

Harmonious connection of the several parts, so that the whole ‘hangs together’. Consistency in reasoning, or relating, so that one part of the discourse does not destroy or contradict the rest

He says great and noble things with infinite wit, but with little or no coherence.

As we practice and work we move from incoherence to coherence.

The central or innermost part, the ‘heart’ of anything.

‘the little plot of ground in the very core of a capital’

This word means the essence of what you need to be in front of the camera – the seed. The source, the beginning, the base from which you let us see you. We can also call it our centre. This ‘core’ has to be developed first before one adds accents, character work, motion capture technique etc.

Contrary in nature, character, or tendency; the converse of a fact. diametrically different; having or expressing a contrary view, argument, etc.

Ariel is the extreme opposite of Caliban.

Opposites always serve us well in acting. It allows us to ask a most useful question that expands the work – what is the opposite of this?

Aristotle, in his Poetics, defines peripeteia as "a change by which the action veers round to its opposite, subject always to our rule of probability or necessity." ... Aristotle says that peripeteia is the most powerful part of a plot in a tragedy along with discovery.

The fact of awareness by the mind of itself and the world.

‘consciousness emerges from the operations of the brain’

We talk of proper practice or deliberate practice when we are in acting class. Consciousness is a key element to have while participating – while practicing. The old adage of - how do you get to Carnegie Hall? practice, practice, practice - doesn’t hold up as one needs to have proper practice – which includes consciousness.

A person who writes screenplays; the writer of the screenplay for a particular film or television programme.

A person who acts a part on stage or (in later use also) in a film, on television, etc.; a dramatic performer, a player.

A lead cameraman or director of photography on a film or television production, who oversees camerawork and lighting and is responsible for creating overall visual style.

To supervise and control the making of a film or the production of a play, etc.; to guide or train (an actor, etc.) in his performance.

A person who designs costumes or outfits, now esp. for theatrical or film productions; a specialist in costume design. Overall design of a project; the work of an art director.