"THE MEANING OF IDIOMS"

The real meaning of the words in a sentence is called the literal meaning. An idiom is an expression with a meaning very different from the literal definitions of the words in them. 

In an idiom, the words' definitions act as symbols and so they give the sentence an idiomatic meaning, which is most often used rather than the idiom's literal meaning.  

Native English-speakers use idioms a lot, however, they can go "out of style" (become less popular) quite often, and new idioms are always being created. If an idiom is overused (used too much) then it becomes a cliché, most people dislike clichés. A cliché is an expression that usually tries to teach people a life-lesson.

Try not to use idioms too deliberately (this means try not to plan to use them), because this sounds mechanical (like a machine). It is important that you use them naturally and confidently. One good way to start studying them is to first try to discover them when you hear native English-speakers talk (in a movie, for example). Remember that not all idioms are appropriate in every social situation, so pay close attention to the context of each example. 

IDIOMS is also combination of words which have a specific meaning which is different, from when those word used in the visually. Here some examples of idiom in sentences :

1. To CHIP IN -everyone adds money to pay for one thing "We all chipped in $10 to buy mom a birthday gift."
2. To CHIP AWAY at -to slowly finish something "Are you finished your homework?" "No, but I'm chipping away at it."
3. To CHILL -to make cold "I'm gonna chill the wine in the fridge." -relax (at home) "Let's chill & watch a movie."
4. To CHEW OVER" -to think about making a decision "I'm chewing over your business suggestion."
5. To CARRY ON -to continue "I will carry on studying biology in September."
6. To CALL OFF" - to cancel "We called off the picnic because of rain."
7. To GET THROUGH to someone -to try to communicate with someone “He's too angry for me to get through to him.”
8. BY NO MEANS -'not at all' "I'm by no means a good cook!" "I can by no means finish tonight. I need more time."
9. BY ANY MEANS -no matter what is done "I will become successful by any means."
10. BY ALL MEANS -YES...no matter what! "Please, by all means, visit us!" "By all means, have some food."
11. To BUY OFF -to bribe someone with money! VERY BAD! "The criminals bought off the corrupt politician."
12. To BOSS someone AROUND -to tell someone what to do! You be Nice, not BOSSY! Please :)