All-Over-PrintA printed pattern that’s printed over the whole fabric rather than just in one place.
AppliquéA decorative effect whereby a piece of fabric is sewn onto a garment, e.g. in the shape of a flower, it could be multiple layers or pieces of fabric.
Back Neck BindingStitching a tape or binding over the back neck seam to give a nice smooth finish and contrast detail
BandeauA big jersey waistband on our maternity wear bottoms, helps the garment to sit comfortably over the growing bump but still have the appearance of pre-pregnancy clothing.
Bias CutA garment where the straight grain of the (woven) fabric is at 45 degrees to the Centre Front/ Centre Back. It makes the garment drape/ hang really nicely clinging to the body in a slinky way.
BindingA raw edge which is sandwiched within a narrow strip of folded fabric, which is then topstitched, for example on a girl’s t-shirt neck.
Blanket StitchA decorative effect created by stitching loops to enclose a raw edge, using a heavy thread usually in a contrast colour.
Boat NeckWide but high neck opening 
BoucléA fabric which is knitted in such a way as to create small loops on the surface- think shag pile rug on a smaller scale.
Buttonhole ElasticElastic which has ‘buttonholes’ cut into it, to allow for the extra adjustment needed in maternity & kids waistbands.
Cottage IndustryA hobby (usually craft based) which has grown into a small business. Usually run from home, hence ‘cottage’.
Cowl NeckA neckline on womenswear which drapes to form a soft unstructured V-shape.
Crew NeckSimple round neck with rib collar or binding
CrochetA decorative knit which has deliberate ‘holes’ in it which form a regular pattern. Think your gran’s knitted loo roll cover/travel blanket/ tea cosy.
Dropped Shoulder SleeveArmhole seam drops of the shoulder, often on an oversized top or dress.
Envelope NeckNeck opening that folds over the shoulders. Has no poppers or buttons. Opens wide for newborns but can be tricky to get arms in still so fully opening is still better.
FacingThe edge of a garment, e.g. round neck, which has a small ‘lining’ in the same fabric, usually about 5cm deep.  A back neck facing indicates quality in a garment.
Flock PrintA type of print that leaves a velvet like finish to touch.
French SeamsSeams on a woven garment which are sewn so that the raw edges are completely contained within the garment. A sign of quality and usually used on very delicate fabrics or where you do not want uncomfortable seams such as woven pyjamas.
Fully FashionedKnitted garments where the shape is made by knitting the shape instead of cutting the shape from a knitted fabric. A sign of quality.
Grandad CollarA type of small round collar.
Inset Neck BindingThe neck is finished by inserting a binding under the neck instead of over it. This gives a nice thin contrast- see binding diagrams
Inset PocketsPockets you can see but which have been inserted into the garment (Not like side pockets or patch pockets)
Mandarin CollarA small stand-up collar.
Nehru CollarSimilar to Mandarin but usually taller.
Patch PocketsPockets stitched onto the garment - as a ‘patch’.
Peter Pan CollarA shaped collar usually on babies on girl’s clothes.
Picot EdgingA little lacy type edging.
Placement PrintA feature print is positioned on the garment in one place rather than all over.
Placket/Concealed PlacketThe button opening on a shirt/top/jacket. A "Concealed Placket" means hidden so you don’t see the buttons.
PleatsA way to add extra fullness in without gathering
PointelleA type of knit that has tiny lacy holes in the fabric to make a pattern.
Polo NeckA type of high neck - stretchy enough to be pulled over the head.
Polo Shirt NeckA T-shirt with a knitted or woven collar and button placket.
Raglan SleeveA type of sleeve that goes from neck to underarm rather than shoulder to underarm.
Ric RacWoven trim applied for decorative effect. 
Snap Popper
Poppers used on a garment as a fastening. Very useful for babies.
Tab PocketsType of pocket where there is a flap over the top
TopstitchingA line of stitching usually done in contrast as a detail or to make the clothes stronger. Like seams on Jeans
Turtle NeckLike a Polo Neck but shorter usually
VentA split in a garment to allow for movement, but which crosses over itself so there is only a gap when stretched open - for example at the back of a pencil skirt or trench coat.
WaddingPadding used to make things thicker/warmer. Inside of coats.
Welt PocketsVery smart pockets with an edging around
Woven FabricsFabric that is woven, like shirts and denim, instead of knitted like t-shirt fabric.
Yam Dyed StripeA knitted fabric where the stripe is knitted (you can see it on the inside too) instead of printed on it - a sign of good quality.