39 MELACHOT
PLANTING Definition: Promotion of plant growth.
PLOWING Definition: Promotion of substrate in readiness for plant growth, be it soil, water for hydroponics, etc.hydroponics
REAPING Definition: Severing a plant from its source of growth.
GATHERING Definition: Initial gathering of earth-borne material in its original place.
THRESHINGTHRESHING/EXTRACTIONEXTRACTION Definition: Removal of an undesirable outer from a desirable inner.
WINNOWING Definition according to the Babylonian Talmud: Sorting undesirable from desirable via the force of air. According to the Jerusalem Talmud: dispersal via the force of air.
SORTINGSORTING/PURIFICATIONPURIFICATION Definition: Removal of undesirable from desirable from a mixture of types.
GRINDING Definition: Reducing an earth-borne thing's size for a productive purpose.
SIFTING Definition: Sorting desirable from undesirable by means of a utensil (designed for sifting or sorting).
KNEADING/AMALGAMATIONAMALGAMATION Definition: Combining particles into a semi-solid or solid mass via liquid.
COOKINGCOOKING/BAKINGBAKING Definition for solids: Changing the properties of something via heat. Liquids: Bringing a liquid's temperature to the heat threshold. 'Heat' for these purposes is at the threshold known as "Yad Soledet" (lit. Hand [by reflex] draws back [due to such heat]) which according to the Igrot Moshe (Rabbi Moshe Finestein) is = 43.3°C / 110°F.
THE ORDER OF GARMENTS
SHEARING Definition: Severing/uprooting any body-part of a creature.
SCOURING/LAUNDERINGLAUNDERING Definition: Cleansing absorbent materials of absorbed/ingrained impurities.
CARDINGCARDING/COMBING WOOL Definition: Separating/disentangling fibres.
DYEING Definition: Coloring/enriching the color of any material or substance.
SPINNING Definition: Twisting fibres into a thread or twining strands into a yarn.
WARPING Definition: Creating the first form for the purpose of weaving.
MAKING TWO LOOPS/THREADING HEDDLESHEDDLES Definition: Forming loops for the purpose of weaving or the making of net like materials. This is also the threading of two heddles on a loom to allow a 'shed' for the shuttlecock to pass through. According to the Rambam it is the making of net-like materials.shuttlecock
WEAVING Definition: Form fabric (or a fabric item) by interlacing long threads passing in one direction with others at a right angle to them.
SEPARATING TWO THREADS Definition: Removing/cutting fibres from their frame, loom or place.loom
TYING Definition: Binding two pliant objects in a skilled or permanent manner via twisting.
UNTYING Definition: The undoing of any Koshair or Toveh (see above) binding.
SEWING Definition: Combining separate objects into a single entity, whether through sewing, gluing, stapling, welding, dry mounting, etc.
TEARING Definition: Ripping an object in two or undoing any Tofair (see above) connection.
THE ORDER OF HIDES
TRAPPING Definition: Forcible confinement of any living creature.
SLAUGHTERING Definition: Ending the life of a creature, whether through slaughter or any other method.
FLAYINGFLAYING/SKINNING Definition: Removing the hide from the body of a dead animal.
CURINGCURING/PRESERVING Definition: Preserving any item to prevent spoiling.
SMOOTHING Definition: Scraping/sanding a surface to achieve smoothness.
SCORING Definition: Scoring/drawing a cutting guideline.
MEASURED CUTTINGCUTTING Definition: Cutting any object to a specific size.
THE ORDER OF CONSTRUCTION
WRITING Definition: Writing/forming a meaningful character or design.
ERASING Definition: Cleaning/preparing a surface to render it suitable for writing.
BUILDING Definition: Contributing to the forming of any permanent structure.
DEMOLITION Definition: Demolishing for any constructive purpose.
EXTINGUISHING A FIRE
IGNITING A FIRE Definition: Igniting, fueling or spreading a fire/flame.
APPLYING THE FINISHING TOUCH Definition: Any initial act of completion.
TRANSFERRING BETWEEN DOMAINS