Idioms
An idiom is a type of phrase or expression that has a meaning that can't be deciphered by defining the individual words.
Idiom:
lick one's lips
Meaning:
to show eagerness or pleasure about a future event
Example:
I began to lick my lips when I heard about the chance to go on the training course.
List of common idioms, their meanings and examples of their usage in sentences
An idiom is a group of words, or in other words, a phrase that has a meaning other than its literal meaning of the words in it.