A group of flowers gathered together so you can hold them or put them in a vase is called a bouquet, or sometimes just a bunch. Brides often carry a bouquet of flowers when they get married.
A corsage is a small bouquet that is worn to one side of your chest, or on your wrist. Corsages are often worn at weddings.
Two people are married if they have been through a wedding ceremony together and have formally become a couple.
A ring is a piece of jewelry that you wear on your finger. Rings can be made out of almost anything, but are usually made from some kind of metal with some kind of stone set into them. The lady in the picture has three rings on her hand. Plain rings are generally worn by a married couple after their wedding.
A wedding is a kind of ceremony that joins two people together in marriage, which means they are going to live together as a couple for a long time afterwards. People getting married usually dress up in very nice clothes for the ceremony. They usually have all their family with them for a party afterwards. When two people get married, the woman is called a bride and the man is called a groom.