You have to learn them
A lexicographer who creates new expressions, phrases, and words is often known as a neologist. Neologists invent new words to fill lexical gaps or to capture new concepts or trends in language and society. Their work contributes to the evolution and enrichment of the vocabulary.
It's important because you increases your vocabulary and your ability to express yourself. If your study technique's good, you'll learn a lot of new words and expressions which will be useful for the rest of your life! :)
To effectively teach their baby their first words, parents can use simple and repetitive language, engage in conversations with their baby, point out and label objects, read books together, and use gestures and facial expressions to reinforce words. Consistent practice and patience are key in helping babies learn and remember new words.
10 new words a day
What new words did they learn?
Learn 50 new vocabulary words
All humans perform universal facial expressions that give away their feelings. Babies can show these expressions without having to learn them because they are born with the 'instinct'.
They use as expressions the words small, timeworn and clean
Learn new battle strategies and teach others her knowledge.
sun burn
a selection of insulting words or expressions
Commas