idiom and the meaning..

hello, i want to share with you some idioms and the meanings..

a bird in the hand is worth two in the bush Meaning: having something that is certain is much better than taking a risk for                  more, because chances are might lose everything. A blessing in disguise Meaning: something good that isn't recognised at first. a chip on your shoulder Meaning:being upset for something that happened in the past. A dime a dozen Meaning: anything that is common and easy to get A doubting thomas Meaning:a skeptic who needs physical or personal evidence in order to believe    something