Idioms
An idiom is a group of words, or in other words, a phrase that has a meaning different from the literal meaning of the words in it.
Idiom:
off guard
Meaning:
not alert to the unexpected
Example:
It caught me off guard when my friend suddenly asked me to lend her some money.
List of common idioms, their meanings and examples of their usage in sentences
An idiom is defined as - a group of words whose meaning is different from the meanings of the individual words.