A flat piece of wood is called a board.
Animals of the phylum Platyhelminthes are known as flatworms because their bodies are dorsoventrally flattened, giving them a thin and flat appearance. This flat body shape allows for efficient gas exchange and nutrient absorption through their body surface.
plumage
The soft greyish limestone that crumbles easily is called chalk.
A flat cut on a precious stone is called a "table cut". It is a cut where the top of the stone is polished flat with large facets.
Tam-O-shanter / bonnet
not sure!! sorry
A flat army cap is commonly referred to as a "garrison cap" or "flight cap." It is a type of military headgear that is characterized by its flat, foldable design and is often worn by military personnel. In some contexts, it may also be called a "service cap" or "barracks cap."
A French soldier's cap is called a "bérét" or "beret." This soft, round, flat-crowned hat is traditionally associated with the French military and is often worn by various branches of the armed forces. The beret has become a symbol of French culture and is also popular in civilian fashion.
could be a watch cap or a skullcap maybe even a slough hat
It is called Minky...There is a flat Minky and Minky with Bumpy Dots to be precise
JP Cooper is often seen wearing a flat cap, which is a type of soft cap with a small, stiff brim in front. This style complements his casual yet stylish aesthetic and reflects a classic, vintage vibe. The flat cap has become somewhat of a signature look for him in various public appearances and performances.
Depending on how it is used it can be a hat or a top of a bottle, or a part on a car called a distributor cap. A lid or cover, or to place a limit on an activity, prices, or expenses. A cap gun toy for children.
The flat surface where spores are created is called the lamella. There are several different species of mushrooms.
Carbonated beverages will go flat overnight if uncovered. Bottles with a cap last longer, but will also loose some of their umf.
hard salary cap
A flat cap is sometimes called a sixpence because it became popular among working-class men in the early 20th century who would commonly store a sixpence coin in the hat's lining for good luck. The term likely originated from this association with the coin.