The verb Cleave is the only English word with two synonyms that are antonyms of each other: Adhere and Separate

The permanent teeth that erupt to replace their primary predecessors (baby teeth) are called succedaneous teeth

A ‘bibliophile’ is one who collects rare books A ‘bibliopole’ is a seller of rare books

The most common colour for highlighters is yellow because it doesn t leave a shadow on the page when photocopied

The purple frog lives underground for most of the year and only comes out for about two weeks every year to mate

The verb cleave is the only English word with two synonyms which are antonyms of each other: adhere and separate

False Awakening is the state in which a person dreams that they re waking up while they are really in deep sleep

Sharks have a strong sense of hearing They can hear a fish thrashing in the water from as far as 500 meters away

The word pajamas has its origin in Persian It is a combination of the Persian words pa (leg) and jamah (garment)

If one or more of your adult teeth is ever knocked out put it in coconut water until the dentist can reattach it

The little hole in the sink that lets the water drain out instead of flowing over the side is called a porcelato

Dogs have three eyelids The third lid called a nictitating membrane or haw keeps the eye lubricated and protected

There are 52 playing cards in a deck to represent the 52 weeks in a year - The four suits represent the 4 seasons

When two words are combined to form a single word (e g motor + hotel = motel) the new word is called a portmanteau

Virga are streaks of water drops or ice particles falling out of a cloud and evaporating before reaching the ground