Idioms are an important part of the vocabulary and grammar section of competitive exams. From hefty notes to English books, students see atleast 100 idioms that they need to learn and revise. So, here we mention 10 commonly asked idioms and their meanings.Idioms are an important part of the vocabulary and grammar section of competitive exams. From hefty notes to English books, students see atleast 100 idioms that they need to learn and revise. So, here we mention 10 commonly asked idioms and their meanings.