So here are some tips on what they do mean.

When you having a cut

1) When a stylist says graduation

This is a type of layering where you cut progressively shorter towards the back of the head than at the front.
You will find this cut is mostly used on a bob cut.

2) When a stylist says slicing

Slicing is when your stylist slides there scissors through your hair without closing the blades completely, this will leave your hair with a feathered finish.

3) When a stylist says about razoring

Using a razor is a way of thinning and creating and softness and texture at the same time.

4) When a stylist says point cutting

This is when your stylist uses the points of the scissors to break up the blunt lines it the hair cut; the finished look can be fine and chunky.

5) When a stylist says layering

Layering is away to reduce the weight in thick hair or to add more movement.
Having layers in fine hair will give it body and movement too.

Layers also give long hair more shape and short hair texture.

When you are having a colour

1) When a stylist says highlights

Highlights are when you have streaks of colour that are lighter than your natural shade.

2) When a stylist says lowlights

Lowlights are when you have streaks of colour that are darker or richer than your natural shade.

3) When a stylist says tone on tone colour

This is when they will use a peroxide to give a long lasting effect on your hair, it won’t lighten your hair and it will fade out gradually so you won’t get root re-growth.

4) When a stylist says permanent colour

This is when your stylist will mix a colour with hydrogen peroxide. This can lighten your colour tone by three levels.
With a permanent colour you will have to grow it out.

5) When a stylist says panelling

This is when you have slabs of flashes of colour applied to the hair using foils (but they are not woven like highlights or lowlights).
This will give high fashion and dramatic finish.

6) When a stylist says T section

This is when you have highlights, lowlights only on the top section of you head.

7) When a stylist says full head

This is when all of your hair is coloured this can be done with a permanent or semi permanent colour.

You can also have a full head of highlights or lowlights.