The first meaning of pin mentioned in the dictionary of the Royal Spanish Academy (RAE) refers to a metal nail with a very thin body, which is used to hold or hook something. For example: “Be careful that the dress still has pins because I haven't sewn it yet” , “With a pin, the young man added the cockade to his shirt” , “I'm going to raise the curtain a little with the help of pins so it doesn't rub the ground ” .
Pins usually have a head at one end and a point at the other. This allows them to hold something without it falling. There are, however, special pins that have other shapes, such as the safety pin, also called safety pin or safety pin. It is a pin that closes on itself and cannot be opened easily, providing the grip with greater security.
The tie clip, on the other hand, is used to secure the tie to a shirt, preventing it from moving or losing its vertical position. Usually made of metal or leather, these pins often include ornamental details or feature insignia that reflect the user's affiliation with a particular group or organization.
The pin idea, on the other hand, is used in the construction of various phrases of colloquial language. When someone indicates that there is " no room for a pin" in a place, they mean that there is no space for anyone else to enter. Something that is “pinned” , on the other hand, is precarious or unstable.
A cut of beef a fish and various species of plants are also called pin according to the region, as detailed by the dictionary of RAE.
Pin fish
After a close observation of a pinfish, it is clear that it is not a worm, especially when paying attention to its gill gill cover and its head (very similar to that of a seahorse, one of its already mentioned relatives, in part by the shape of its snout).
Its cousin, the mule needlefish, is the only species with which it is possible to confuse the pinfish, although the shape of the former is more rounded to the sides and considerably slimmer. Both have a single dorsal fin, which is located from the middle of the back towards the base, although the mule needle's snout is more extensive.
The male's coloration usually combines shades of green, although the abdomen tends to be yellowish; the female, on the other hand, exhibits bluish spots all over her body, including the head, and is generally more striking in appearance. In any case, when the spawning season arrives, which takes place in the middle of summer, the coloring increases in both sexes.
With regard to reproduction, the male must carry the eggs deposited by the female into his incubator bag, to fertilize them and carry them for approximately three weeks before giving birth to the young, which begin to swim as soon as they are born.
The pinfish feed on plankton and are distributed along the entire coast of Finland, except in the northern Gulf of Bothnia, since the level of sanitation of its waters is insufficient for its development.