Scissors and plurale tantum I have learnt about it and decided to share it. There is the Látin term - Pluralia tantum (plurale tantum in English). It is a noun that appears only in the plural form and doesn’t have a singular variant for referring to a single object. In a less strict usage of the term, it can also refer to nouns whose singular form is rarely used. There are a lot of examples: scissors and shears, tongs and pliers, clothes and trousers, pants, jeans, shoes, gloves, shorts and tights, as well as shenanigans, folk, аmends, etc. There is an interesting example of using of collocations, combinations of words.The scissors is plural. However when we say "a pair of scissors", we are referring to one pair, consequently, therefore this collocation is singular. Hence, some plurale tantum nouns in English can have a singular form, used only attributively. For example phrases such as "trouser press" and "scissor kick" contain the singular form, but it is considered non-standard to say "a trouser" or "a scissor". That accords with the strong preference for singular nouns in attributive positions in English, but some words are used in the plural form even as attributive nouns, such as "clothes peg" or "glasses case». A trouser press is a device for making or keeping your trousers smooth by pressing them between two boards. A scissor kick - in football, a kick in which a player jumps backwards into the air and then kicks the ball when it is above his head. Some words in English may have countable, uncountable (or mass) and plurale tantum form simultaneously. The word "glasses" in meaning «a set of corrective lenses to improve eyesight» is plurale tantum. In contrast, the word «glass» as a container for drinks is a count noun and may be in singular or plural. And «glass» in meaning «a vitreous substance» is a mass noun. Some other words​, such as "brain" and "intestine", can be used as either plurale tantum nouns or count nouns.