Crochet stitches have different terminology in different countries. Schematic crochet symbols have a consistent meaning internationally.
| Photograph | Schematic | U.S. term | U.K. term | Turning chain |
|---|---|---|---|---|
 | slip stitch | slip stitch / single crochet | N/A | |
 |  | chain stitch | chain stitch | N/A |
 |  | single crochet | double crochet |  |
 |  | half double crochet | half treble |  |
 |  | double crochet | treble |  |
 |  | triple/treble crochet | double treble |  |
 |  | double treble crochet | triple/treble treble |  |
Crochet is a process of creating textiles by using a crochet hook to interlock loops of yarn, thread, or strands of other materials. The name is derived from the French term croc, meaning 'hook'. Hooks can be made from a variety of materials, such as metal, wood, bamboo, bone or plastic. The key difference between crochet and knitting, beyond the implements used for their production, is that each stitch in crochet is completed before the next one is begun, while knitting keeps many stitches open at a time. Some variant forms of crochet, such as Tunisian crochet and broomstick lace, do keep multiple crochet stitches open at a time.
Knitting is a method for production of textile fabrics by interlacing yarn loops with loops of the same or other yarns. It is used to create many types of garments. Knitting may be done by hand or by machine.
Needlework is decorative sewing and textile arts handicrafts. Anything that uses a needle for construction can be called needlework. Needlework may include related textile crafts such as crochet, worked with a hook, or tatting, worked with a shuttle.
Yarn is a long continuous length of interlocked fibres, used in sewing, crocheting, knitting, weaving, embroidery, ropemaking, and the production of textiles. Thread is a type of yarn intended for sewing by hand or machine. Modern manufactured sewing threads may be finished with wax or other lubricants to withstand the stresses involved in sewing. Embroidery threads are yarns specifically designed for needlework. Yarn can be made of a number of natural or synthetic materials, and comes in a variety of colors and thicknesses. Although yarn may be dyed different colours, most yarns are solid coloured with a uniform hue.
A crochet hook is an implement used to make loops in thread or yarn and to interlock them into crochet stitches. It is a round shaft pointed on one end, with a lateral groove behind it. The point eases the insertion of the hook through the material being crocheted and the groove makes it possible to pull a loop back through the material. The shaft is then divided into a working area that determines the hook's nominal diameter and ensures the uniform sizing of the loops formed on it, and a handle.
Broomstick lace, also known as jiffy lace and peacock eye crochet, is a historic crochet technique from the 19th century made using a crochet hook and another long slender item such as a knitting needle. Traditionally a broomstick was used, hence the name, but the modern variant is a lightweight plastic knitting needle or smooth wooden craft dowel. A larger knitting needle or dowel will result in a lacier effect, while a smaller will provide a more closely woven effect. The technique is used to make clothing, blankets, and other crocheted items. In most crochet techniques, each stitch is finished before beginning the next. Broomstick lace is different; like in knitting and Tunisian crochet, many stitches are left open for broomstick lace.
ISO 5775 is an international standard for labeling the size of bicycle tires and rims. The system used was originally developed by the European Tyre and Rim Technical Organisation (ETRTO). It is designed to make tire sizing consistent and clear. It replaces overlapping informal systems that ambiguously distinguished between sizes. For example, at least 6 different "26 inch" sizes exist, and "27 inch" wheels have a larger diameter than American "28 inch" wheels. The Japanese Industrial Standards Committee also cooperates with ISO 5775. The corresponding Japanese standards are JIS D 9112 for tires and JIS D 9421 for rims.
Hairpin lace is a lace-making technique that uses a crochet hook and two parallel metal rods held at the top and the bottom by removable bars. Historically, a metal U-shaped eponymous hairpin was used.
An afghan is a blanket or shawl, usually knitted or crocheted. It is sometimes also called a "throw" of indeterminate size. Afghans are often used as bedspreads, or as a decoration on the back of couches or chairs.
In knitting, casting on is a family of techniques for adding new stitches that do not depend on earlier stitches, i.e., having an independent lower edge. In principle, it is the opposite of binding off, but the techniques involved are generally unrelated.
Novelty yarns include a wide variety of yarns made with unusual features, structure or fiber composition such as slubs, inclusions, metallic or synthetic fibers, laddering and varying thickness introduced during production. Some linens, wools to be woven into tweed, and the uneven filaments of some types of silk are allowed to retain their normal irregularities, producing the characteristic uneven surface of the finished fabric. Man-made fibres, which can be modified during production, are especially adaptable for special effects such as crimping and texturizing.
Ideas from mathematics have been used as inspiration for fiber arts including quilt making, knitting, cross-stitch, crochet, embroidery and weaving. A wide range of mathematical concepts have been used as inspiration including topology, graph theory, number theory and algebra. Some techniques such as counted-thread embroidery are naturally geometrical; other kinds of textile provide a ready means for the colorful physical expression of mathematical concepts.
Knitting clubs are a feature of the 21st-century revival of hand knitting which began in America and has spread to most of Europe. Despite the name, knitting clubs are not limited to knitting; both crochet-centered and knit-centered clubs are collectively called "knitting clubs." While knitting has never gone away completely, this latest reincarnation is less about the make-do and mend of the 1940s and 1950s, and more about making a statement about individuality and developing a sense of community.
A granny square is a piece of square fabric produced in crochet by working in rounds from the center outward. Granny squares are traditionally handmade as crochet and cannot be manufactured by machine. They resemble coarse lace. Although there is no theoretical limit to the maximum size of a granny square, crocheters usually create multiple small squares and assemble the pieces to make clothing, purses, Afghan blankets, and other household textiles.
A dye lot is a record taken during the dyeing of yarn to identify yarn that received its coloration in the same vat at the same time. Yarn manufacturers assign each lot a unique identification number and stamp it on the label before shipping. Slight differences in temperature, dyeing time, and other factors can result in different shades of the same color between different dye lots of otherwise identical production. Although the component elements of a dye lot number are of interest only for internal business recordkeeping, retail yarn consumers have an interest in ensuring that they purchase a given color of yarn from identical dye lots.
Crochet thread is specially formulated thread usually made from mercerized cotton for crafting decorative crochet items such as doilies or filet crochet. Crochet thread produces fabric of fine gauge that may be stiffened with starch.
In crochet, a stitch marker is a mnemonic device used to distinguish important locations on a work in progress. Crochet patterns have a mathematical basis, so stitch markers serve as a visual reference that takes the place of continuous stitch counting and reduces a crocheter's error rate.
A hook gauge or needle gauge is a measuring device used by crocheters and knitters to test the sizes of particular crochet hooks and knitting needles. Hook gauges are usually made of plastic or aluminum and have sizing holes from 2mm to 11mm diameter. A hook gauge also functions as a ruler to test the size of a test swatch of handmade fabric.
In the textile arts, a stitch is a single turn or loop of thread, or yarn. Stitches are the fundamental elements of sewing, knitting, embroidery, crochet, and needle lace-making, whether by hand or machine. A variety of stitches, each with one or more names, are used for specific purposes.
Tapestry crochet is sometimes called jacquard crochet, intarsia, mosaic, fair isle, and colorwork, but today these terms usually describe different techniques. Since the yarns are switched back and forth to create motifs, tapestry crochet fabric looks more like it was woven on a loom than crocheted with a hook.
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| Crocheted lace | ||
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